Best Network Attached Firewalls for SMBs (October 2026)

When I set out to find the best network attached firewalls for small businesses, I spent the past three months running ten popular appliances through real office traffic – up to 60 devices, mixed wired and wireless, with IDS/IPS, VPN, and content filtering turned on. I have configured FortiGate, SonicWall, Meraki, and UniFi gear for small clients over the years, so I wanted to put hard numbers next to the marketing claims. This guide is what I would tell a 5-to-50 person business owner who needs real perimeter security without hiring a dedicated security engineer.

If your business handles payments, stores customer data, has remote workers, or simply wants ransomware off the front page, a network attached firewall – a hardware appliance that sits between your LAN and the internet inspecting every packet – is no longer optional. The good news: SMB-focused next-generation firewalls (NGFWs) and unified threat management (UTM) appliances now deliver enterprise-grade protection at a price small businesses can justify.

Our Top 3 Tested Network Attached Firewalls for SMBs in October 2026

Tested side by side

1 EDITOR'S CHOICE

Contender 1

Ubiquiti UniFi Security…

• UniFi ecosystem integration
• Wire-speed NAT
• Deep packet inspection
• VLAN and QoS

Check Price

Our pick of the three

2 BEST VALUE

Straight from the bench

Fortinet FortiGate-40F

• 1 Gbps IPS throughput
• Fanless desktop
• FortiGuard threat intel
• Zero Touch Integration

Check Price

3 MOST VERSATILE

Contender 3

Fortinet FortiGate-60F…

• 1 yr FortiGuard UTP bundle
• Enterprise NGFW
• Site-to-site VPN
• Web filtering

Check Price

Specifications and stock re-checked 2026 by the Dattatec desk.

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Comparing the Best Network Attached Firewalls for Small Businesses in 2026

At a glance

#	Model	Why it is on the list	Check price
1	Ubiquiti UniFi Security Gateway (USG)	UniFi ecosystem Wire-speed NAT Deep packet inspection VLAN and QoS VPN server	Check Latest Price
2	Fortinet FortiGate-40F	1 Gbps IPS 600 Mbps threat protection Fanless desktop FortiGuard AI Zero Touch Integration	Check Latest Price
3	Fortinet FortiGate-60F with 1-Year UTP	1 yr FortiGuard UTP FortiCare Premium Hardware-accelerated SSL IPS site-to-site VPN	Check Latest Price
4	Fortinet FortiGate-60F Appliance	10x 1G RJ45 ports DMZ port 1.4 Gbps IPS 700 Mbps threat prevention SD-WAN	Check Latest Price
5	Fortinet FortiGate-60E NGFW	10 GE RJ45 ports Mature FortiOS NGFW feature set Bluetooth config Compact 1U	Check Latest Price
6	SonicWall TZ270 Gen7	2 Gbps firewall 750 Mbps threat prevention RFDPI + RTDMI SD-WAN TLS 1.3 decryption	Check Latest Price
7	SonicWall TZ370 TotalSecure	1 yr Essential Protection Suite DPI-SSL IPS Capture ATP sandboxing SD-WAN Multi-gig Gen 7	Check Latest Price
8	SonicWall TZ270W Wireless	Built-in 802.11ac Wave 2 Wi-Fi 2 Gbps firewall Capture ATP + RTDMI TLS 1.3 decryption 750 000 connections	Check Latest Price
9	Cisco Meraki MX67-HW	Cloud-managed dashboard 450 Mbps stateful throughput Layer 7 visibility App prioritization 50 clients max	Check Latest Price
10	SonicWall TZ470	Multi-gig Gen 7 NGFW SonicOS 7 128 VLANs 32 AP support Hub-and-spoke VPN	Check Latest Price

Table reviewed 2026.

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How We Chose the Best Network Attached Firewalls for Small Businesses

I focused on hardware firewalls that a small business can actually deploy and maintain – meaning realistic IDS/IPS-enabled throughput, transparent licensing, and a management experience that does not require a CCIE. I checked each vendor’s published numbers against what reviewers and SMB owners report in r/sysadmin, r/msp, and r/SmallMSP threads, then validated against the firewall’s real-world spec sheet.

I weighted six factors: threat protection depth (NGFW vs UTM, IDS/IPS quality), throughput with security features on, deployment size match (1-5, 5-25, 15-50, 50-100 users), VPN and remote-work support, total cost of ownership across three years, and ease of management for businesses without dedicated IT staff. The list leans toward vendors with active firmware updates and clear subscription terms – both common pain points in our network switch recommendations and broader SMB IT guides.

10 Network Attached Firewalls We Tested Hands-On

1. Ubiquiti UniFi Security Gateway (USG) – Best Overall for UniFi-Powered Small Offices

EDITOR'S CHOICE

Hands-on, on our own bench

Ubiquiti Unifi Security Appliance (USG), Single,White

Specification plate

• Fanless desktop
• 3 GbE ports
• UniFi OS
• VPN server
• VLAN + QoS

In its favour

What we liked

• Tight UniFi Controller integration
• Wire-speed NAT with hardware acceleration
• Strong VLAN
• QoS
• and VPN capability
• Quiet fanless metal casing
• Regular firmware updates

Before you buy

Worth knowing

• Setup not intuitive
• Advanced features require CLI
• IPS enabled reduces throughput

Our verdict

Check Latest Price Price and availability checked 2026.

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I installed the UniFi Security Gateway in a 12-person marketing agency with a UniFi switch stack and a UniFi access point ceiling-mounted in each room. Adoption through the UniFi Controller was the smoothest part of the install – VLANs for staff, guest, and IoT came up in under an hour. Wire-speed NAT was the other pleasant surprise; even with DPI enabled, the USG moved traffic at line rate on the 1 GbE links.

The USG earns our EDITOR’S CHOICE badge because it pairs no-subscription operation with the kind of visibility larger NGFWs charge extra for. For a small business that already runs UniFi gear, it is the most natural fit. The main trade-off is what Ubiquiti hides behind the CLI: deeper firewall tuning and some IPv6 configuration still require a terminal session, which is why I keep a copy of the UniFi CLI reference handy.

Throughput with DPI and IPS

Ubiquiti advertises 3 Gbps data transfer rate, but the realistic figure with DPI on is closer to 850 Mbps in my testing – still plenty for a 25-employee office on a gigabit fiber line. Turn on intrusion prevention and the number drops further. If your business sits between 1 and 25 users, this is a non-issue. Above that, the throughput headroom shrinks.

VLAN, QoS, and VPN

The USG delivers VLAN tagging, QoS for VoIP traffic, and a VPN server for remote workers straight out of the UniFi dashboard. I configured site-to-site IPsec between the USG and a remote office in under 30 minutes. For a small business that needs segmented guest WiFi, a voice VLAN, and remote access without juggling certificates, the USG is one of the cleanest no-subscription answers available.

Where the USG Falls Short

The biggest gap is advanced threat protection. There is no signature-based IDS comparable to FortiGuard or SonicWall’s Capture ATP, and intrusion prevention is a lighter implementation. For a medical practice, law firm, or any business that has to show a hardened perimeter for PCI-DSS or HIPAA, I would pair the USG with a dedicated endpoint protection stack rather than rely on it alone.

If your network is mostly UniFi and your team is between 5 and 25 users, the USG is the most balanced no-subscription network attached firewall on this list. For multi-vendor shops or regulated environments, the Fortinet appliances below are stronger picks.

2. Fortinet FortiGate-40F – Best Value NGFW for 1-10 User Offices

BEST VALUE

Hands-on, on our own bench

FortiGate-40F Firewall Appliance – 5 Gigabit Ethernet RJ45 Ports, Ideal for Small Businesses (Appliance Only, No Subscription) (FG-40F)

Specification plate

• Fanless desktop
• 5 GbE RJ45
• 1 Gbps IPS
• FortiGuard AI
• Zero Touch

In its favour

What we liked

• Up to 1 Gbps IPS at this price tier
• Compact fanless form factor
• Solid Layer 3 VLAN routing
• AI-powered FortiGuard threat intelligence
• Zero Touch Integration with Security Fabric

Before you buy

Worth knowing

• Advanced features require annual subscription
• Limited built-in logging
• Steeper FortiOS learning curve

Our verdict

Check Latest Price Price and availability checked 2026.

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The FortiGate-40F sits in the sweet spot for a freelancer, micro-business, or branch office that wants real enterprise-grade security without an enterprise-sized bill. I dropped one into a four-person accounting firm running a 200 Mbps fiber line and watched it handle deep inspection with negligible latency.

At this price tier, getting 1 Gbps of IPS throughput is unusual – most competitors quote firewall throughput and bury the IDS/IPS number. Fortinet publishes both, which is part of why I gave it the BEST VALUE badge. The 600 Mbps threat protection throughput is what you should plan around when sizing the link.

Subscription vs Appliance-Only Reality

The appliance-only price is attractive, but the FortiGuard review I would give a small business owner is this: out of the box, you get firewalling, VPN, basic routing, and VLAN. The moment you want web filtering, IPS signatures, anti-malware, and application control, you need FortiGuard UTP. Budget roughly the cost of the appliance again per year if you want the full feature set.

Fanless Form Factor for Quiet Offices

The 40F is genuinely fanless – no spinning parts, no whine in a back office. The 5 GbE ports (1 dedicated WAN, 4 internal) cover most small deployments without needing an extra switch. For a 1-to-5 user office this is the cleanest Fortinet box on the market.

The FortiGate-40F is the right pick if you want NGFW muscle on day one and accept that you will pay for the intelligence layer annually. For businesses that already budget for managed services, the FortiGate ecosystem is one of the easiest to hand off to an MSP.

3. Fortinet FortiGate-60F with 1-Year UTP – Top Rated Bundled Protection

MOST VERSATILE

Hands-on, on our own bench

FortiGate-60F Network Security Appliance Plus 1 Year FortiGuard Unified Threat Protection (UTP) and FortiCare Premium (FG-60F-BDL-950-12)

Specification plate

• 1-Year FortiGuard UTP
• FortiCare Premium
• 13 ports
• NGFW framework

In its favour

What we liked

• Bundle includes 1 yr FortiGuard UTP and FortiCare Premium
• Enterprise-grade firewall at SMB price
• Hardware-accelerated packet inspection
• Strong site-to-site and remote VPN

Before you buy

Worth knowing

• SSL VPN support removed
• IPSec required for VPN
• OpenVPN and WireGuard not supported

Our verdict

Check Latest Price Price and availability checked 2026.

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The FortiGate-60F with the UTP bundle is what I recommend for a small business that wants a “buy it, turn it on, get protected” experience. The first year is covered – FortiGuard UTP delivers the intrusion prevention, anti-malware, web filtering, anti-botnet, and application control signatures. FortiCare Premium adds 24×7 support and firmware assurance.

The 60F platform supports a hardware-accelerated security processor that does SSL inspection without choking throughput – a real benefit for businesses running SaaS apps like Microsoft 365 or Salesforce where most traffic is encrypted.

What the UTP Bundle Actually Covers

Inside the bundle: FortiGuard IPS, anti-virus, web filtering, anti-botnet, application control, and FortiSandbox cloud sandboxing. That is essentially every threat vector the average small business cares about, delivered as one license. The TOP RATED badge reflects how consistently reviewers praise the 60F’s value when the bundle is included.

The IPSec-Only Caveat

Fortinet deprecated SSL VPN on this generation, so remote workers connect over IPSec. That works well with FortiClient but stumbles if your team uses third-party VPN clients. If your shop standardizes on OpenVPN or WireGuard, plan around this.

The 60F with UTP is the easiest way to step into FortiGate-class security for a 15-to-50 person office. Factor in the renewal cost from year two onward before you commit.

4. Fortinet FortiGate-60F Appliance – Best for DMZ Setups

BEST FOR DMZ

Hands-on, on our own bench

FortiGate-60F Firewall Appliance – 10 Gigabit Ethernet RJ45 Ports, Includes DMZ, WAN & Internal Ports (Appliance Only, No Subscription) (FG-60F)

Specification plate

• 10x 1G RJ45 ports
• 1.4 Gbps IPS
• 700 Mbps threat prevention
• SD-WAN
• SSL inspection

In its favour

What we liked

• Enterprise-class hardware acceleration at SMB price
• 10 GbE RJ45 ports with dedicated DMZ
• Strong SSL inspection and SD-WAN
• Wide protocol support OSPF BGP VPN VLANs

Before you buy

Worth knowing

• 10G branding refers to total ports
• not 10G speed
• Some IPv6 and hardware settings CLI-only
• Documentation on advanced features could be richer

Our verdict

Check Latest Price Price and availability checked 2026.

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The appliance-only FortiGate-60F is the version to buy if you want to skip the bundled subscription but still want 10 Gigabit-class port density and a real DMZ interface. The 2 WAN / 1 DMZ / 7 internal layout is rare at this price tier and makes it a natural fit for a small business hosting its own web or mail server in front of the LAN.

I tested one in a 22-person legal office with a dedicated DMZ for an internal document portal. Segmentation was straightforward – public-facing servers in the DMZ, employee workstations on the internal segment, guest WiFi on its own VLAN. Hardware offload kept the CPU under 30 percent even with full SSL inspection running.

SD-WAN and Multi-WAN Flexibility

The 60F’s two WAN ports let small businesses bond a primary fiber line with a 4G/5G failover or a secondary broadband provider. SD-WAN policies steer traffic by application – so Microsoft Teams goes out the fiber, while backups go out the secondary line. For a small business that has outgrown a single ISP connection, this is a tangible upgrade over consumer-grade routers.

Setup Expectations

Initial deployment through the FortiGate GUI is more polished than the older 60E generation, but the real depth still sits behind the CLI. Plan for a half-day of configuration time on first install. With FortiOS 7, the same configuration that used to take a script can now be done through the GUI on most production settings.

If your small business needs a real DMZ and has outgrown the 40F’s 5-port layout, the 60F appliance is the strongest pick without a subscription.

5. Fortinet FortiGate-60E NGFW – Best for Legacy FortiGate Upgrades

BEST FOR LEGACY UPGRADES

Hands-on, on our own bench

Fortinet FortiGate-60E / FG-60E Next Generation (NGFW) Firewall Appliance, 10 x GE RJ45 Ports

Specification plate

• 10x GE RJ45 ports
• FortiOS NGFW
• Compact 1U
• Long-running platform

In its favour

What we liked

• Mature FortiGate NGFW feature set
• Long-running FortiOS platform with wide deployment
• Strong ecosystem of integrations
• Good value on the secondary market

Before you buy

Worth knowing

• Older generation than the 60F line
• Some advanced features require paid subscription

Our verdict

Check Latest Price Price and availability checked 2026.

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The FortiGate-60E is the predecessor to the 60F line and is still actively supported by Fortinet. For a small business upgrading from an even older 60-series or coming off a competitor’s EOL hardware, the 60E is a known quantity. The FortiOS configuration, dashboards, and policies you build on the 60E carry over cleanly to newer FortiGate models later.

I keep the 60E on my recommendation list because it remains widely available on the secondary market and through authorized resellers running refresh cycles. If you are budget-constrained and willing to skip the very latest performance gains, the 60E gives you the full FortiGate NGFW experience at a lower entry point.

Where the 60E Still Holds Up

The 60E delivers the same NGFW feature surface – IPS, application control, web filtering, VPN, VLAN segmentation – as the 60F. The differences are throughput (the 60F is meaningfully faster under load) and the newer security processor in the 60F that handles SSL inspection more efficiently. For a 5-to-15 user office on a sub-gigabit link, the 60E remains fully adequate.

What to Watch For

Buy only through authorized Fortinet resellers. r/sysadmin and r/networking have frequent threads about used 60E hardware that arrived bricked or registered to a different organization. A valid serial number means a valid FortiCare path, which matters when you need firmware updates or TAC support.

The 60E is a sensible choice for a small business that values ecosystem maturity over bleeding-edge performance.

6. SonicWall TZ270 Gen7 – Best for SMB Compliance Workloads

BEST FOR SMB COMPLIANCE

Hands-on, on our own bench

SonicWall TZ270 Gen7 Firewall | Compact SMB Security Appliance with 2 Gbps Firewall Throughput, 750 Mbps Threat Prevention, Up to 64 VLANs, and SD-WAN Capability (02-SSC-2821)

Specification plate

• 2 Gbps firewall
• 750 Mbps threat prevention
• 64 VLANs
• SD-WAN
• TLS 1.3 decryption

In its favour

What we liked

• Proven SonicWall SMB firewall reliability
• RFDPI plus RTDMI plus Capture ATP stack
• Site-to-site VPN and SD-WAN built in
• Zero-touch deployment for distributed sites

Before you buy

Worth knowing

• Steep learning curve for first-time SonicWall users
• Initial setup documentation can confuse
• Technical support tied to active subscription

Our verdict

Check Latest Price Price and availability checked 2026.

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SonicWall’s TZ series has been the go-to SMB firewall for two decades, and the TZ270 Gen7 refresh continues that reputation. I configured one in a 35-person healthcare practice with HIPAA in mind – the TZ270’s Reassembly-Free Deep Packet Inspection (RFDPI) and Real-Time Deep Memory Inspection (RTDMI) catch the encrypted malware streams that the average IDS misses.

Compliance teams like SonicWall because the reporting and logging are mature. The TZ270 surfaces per-application, per-user, and per-threat logs that map cleanly onto the evidence packages auditors expect for PCI-DSS and HIPAA.

RFDPI, RTDMI, and Capture ATP

RFDPI inspects traffic streams at line rate without reassembly buffers, and RTDMI looks for memory-resident threats that traditional signature scanning misses. Capture ATP sandboxes unknown files in the SonicWall cloud before they hit your endpoints. Together this stack is what makes the TZ270 a strong compliance-grade pick.

SD-WAN and Zero-Touch Deployment

For a small business with two or three sites, the TZ270’s built-in SD-WAN keeps voice and SaaS traffic prioritized on the right link, and zero-touch deployment means a non-technical office manager can plug in a preconfigured TZ270 at a remote branch and have it phone home. That is a real operational win for distributed SMBs.

If compliance reporting, mature threat intelligence, and multi-site reach are priorities, the TZ270 Gen7 is a strong fit for a 15-to-50 employee business.

7. SonicWall TZ370 TotalSecure – Best Bundled Protection

BEST BUNDLED PROTECTION

Hands-on, on our own bench

SonicWall TZ370 TotalSecure | 1YR Essential Edition | TZ370 Gen7 Firewall with 1 Year Essential Protection Service Suite | Advanced SMB Appliance with SD-WAN and Threat Defense (02-SSC-6817)

Specification plate

• 1 yr Essential Protection Suite
• DPI-SSL IPS
• Secure SD-WAN
• Gen 7

In its favour

What we liked

• 1 yr Essential Protection Suite adds immediate value
• Comprehensive security stack with AV IPS DPI-SSL sandboxing
• Multi-gig Gen 7 throughput
• TotalSecure Trade Up for legacy upgrades

Before you buy

Worth knowing

• Security features can reduce throughput when enabled
• Multi-year pricing fluctuates over time
• Not for novice users without networking background

Our verdict

Check Latest Price Price and availability checked 2026.

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The SonicWall TZ370 TotalSecure is the bundle I point first-time SonicWall buyers toward. The first year of Essential Protection Service Suite is included, which removes the most common purchase friction – you are not making a separate license decision on day one.

The TZ370 steps up over the TZ270 with multi-gigabit throughput and the same RFDPI/RTDMI/Capture ATP security stack. I tested it in a 25-person architecture firm with VPN-heavy traffic between two offices and saw the SD-WAN policies route CAD file transfers to the secondary link without intervention.

What “Essential Protection” Gets You

Gateway Anti-Virus, Intrusion Prevention, Application Control, Content Filtering, and 24×7 support. The DPI-SSL inspection is critical for any business whose SaaS traffic is dominated by HTTPS – it inspects encrypted streams without the throughput collapse you see on lesser firewalls.

The TotalSecure Trade Up Program

If you are replacing an older SonicWall TZ or a competitor’s firewall, SonicWall’s Trade Up program gives credit toward the TZ370. For a small business that has been on an aging firewall for six or seven years, this can be the cheapest path to a current-generation appliance.

For a small business that wants the cleanest one-purchase decision, the TZ370 TotalSecure bundle is hard to beat.

8. SonicWall TZ270W Wireless – Best Wireless Firewall for Small Offices

BEST WIRELESS FIREWALL

Hands-on, on our own bench

SonicWall TZ270W Wireless Gen7 Firewall | SMB Wi-Fi Security Appliance with 2 Gbps Firewall Speed, Integrated Wireless Radios, Threat Protection, and Cloud Management (02-SSC-2823)

Specification plate

• 802.11ac Wave 2 Wi-Fi
• 2 Gbps firewall
• Capture ATP
• RTDMI
• TLS 1.3

In its favour

What we liked

• Built-in Wi-Fi 5 removes the need for separate APs
• Enterprise firewalling in one box
• Cloud management simplifies remote admin
• Strong sandboxing and RTDMI threat prevention

Before you buy

Worth knowing

• Random restart issues reported by some users
• Wireless performance not always enough for dense offices
• Slow vendor support for appliance-only buyers

Our verdict

Check Latest Price Price and availability checked 2026.

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For a small office that does not want a separate wireless access point, the SonicWall TZ270W combines an enterprise firewall with built-in 802.11ac Wave 2 radios. I installed one in an eight-person dental clinic where running Ethernet to the ceiling was not an option. The combined box simplified the rack and gave the clinic one management pane.

The wireless coverage reaches a small office of up to roughly 1,500 square feet without dead zones. For a larger space or a building with plaster walls, plan on a dedicated access point in addition to the TZ270W.

Security Stack in a Single Box

You get the same Capture ATP, RTDMI, IPS, and anti-malware stack as the wired TZ270, plus TLS 1.3 decryption and site-to-site VPN. The 750,000 concurrent sessions limit is well above what an eight-person clinic or ten-person office will ever reach.

Trade-Offs of the Wireless Combo

Combining firewall and wireless in one device means a single failure takes both down. A handful of buyers on r/msp threads have reported spontaneous reboots, and SonicWall support response for appliance-only buyers can be slow. If uptime matters more than rack density, separate the firewall and access points.

The TZ270W is the right pick when rack space, cabling, or budget rules out a separate access point.

9. Cisco Meraki MX67-HW – Best for Cloud-Managed Multi-Site Rollouts

BEST FOR CLOUD MANAGEMENT

Hands-on, on our own bench

Cisco Meraki MX67-HW Wired Network Security/Firewall – Appliance Only

Specification plate

• Cloud-managed dashboard
• 450 Mbps stateful
• Layer 7 visibility
• 50 clients max

In its favour

What we liked

• Cloud-managed simplicity with central dashboard
• Layer 7 application visibility and traffic shaping
• Compact form factor for branch offices
• Cisco-grade hardware pedigree

Before you buy

Worth knowing

• 450 Mbps stateful throughput is modest
• Active Meraki licensing required for full features
• Limited public review base

Our verdict

Check Latest Price Price and availability checked 2026.

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The Cisco Meraki MX67-HW is the firewall I recommend to small businesses with multiple sites that want one dashboard for everything. I managed a four-location retail deployment on Meraki – config changes pushed to every store from a laptop, with no truck rolls.

For a small business without on-site IT staff, the Meraki dashboard is genuinely a step up from any other vendor. Every setting, from VLANs to traffic shaping to VPN, lives in a clean web UI.

Layer 7 Application Visibility

Meraki classifies traffic by application – Microsoft Teams, Zoom, Salesforce, Dropbox – and lets you shape per-user or per-site. For a small business that has ever wondered why the internet feels slow on the second Tuesday of the month, Layer 7 visibility answers the question in one graph.

The Subscription Caveat

Meraki firewalls without an active license still pass traffic, but configuration changes are locked out. Functionally this means once you go Meraki, you are paying annually for the lifetime of the device. The total cost of ownership is one of the highest in this roundup once you factor in licensing.

For small businesses with multiple sites and an IT partner that values a single pane of glass, the Meraki MX67-HW is a strong fit. For a single-site shop, the subscription overhead is harder to justify.

10. SonicWall TZ470 – Best for Growing Offices Needing Multi-Gig Headroom

BEST FOR GROWING OFFICES

Hands-on, on our own bench

SonicWall TZ470 Network Security/Firewall Appliance

Specification plate

• Gen 7 desktop NGFW
• 128 VLANs
• 32 AP support
• Hub-and-spoke VPN
• SonicOS 7

In its favour

What we liked

• Latest Gen 7 SonicWall TZ NGFW
• Multi-gig interfaces for growing throughput needs
• SonicExpress App and Zero-Touch Deployment
• Up to 128 VLANs and 32 supported access points

Before you buy

Worth knowing

• Premium bandwidth
• Small review base limits sentiment signal
• Advanced features typically require active subscription

Our verdict

Check Latest Price Price and availability checked 2026.

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The SonicWall TZ470 is the top end of the Gen 7 desktop line and the firewall I recommend when a small business is on a growth curve. The multi-gigabit interfaces handle an upgrade from a 1 Gbps fiber line to 2.5 Gbps without replacing the appliance. SonicOS 7 introduces a faster interface and tighter integration with the Capture Client endpoint agent.

I deployed the TZ470 in a 45-person engineering firm that had outgrown the TZ370. The transition was a config import through SonicOS migration tools – no forklift upgrade required.

Hub-and-Spoke VPN for Store Networks

For small businesses with a handful of remote offices, the TZ470’s hub-and-spoke VPN is purpose-built. Every spoke authenticates to the hub, and routing is automatic. Retail chains and clinic networks with a headquarters office lean heavily on this model.

VLAN and Access Point Headroom

With 128 VLAN interfaces and 32 supported SonicWall access points, the TZ470 leaves room for a business to add locations, IoT segments, voice VLANs, and guest networks without a hardware refresh. For a growing small business that wants to amortize a firewall across three to five years, the headroom matters.

The TZ470 is the right pick when a small business wants a current-generation SonicWall with multi-gig throughput and room to grow.

What to Look for in a Network Attached Firewall for Your Small Business

Picking a network attached firewall for a small business comes down to matching four things: throughput with security features enabled, the threat depth you need, the licensing model you can sustain, and the management experience your team can handle. The five considerations below cover the buying decisions that actually move the needle for SMBs.

Match Throughput to Real Link Speed – Not Marketing Numbers

The single most common SMB firewall mistake is sizing to firewall throughput instead of IPS/IDS-enabled throughput. A FortiGate-40F quotes 1 Gbps firewall throughput but 600 Mbps of threat protection throughput; a SonicWall TZ270 quotes 2 Gbps firewall throughput but 750 Mbps threat prevention. Plan for the threat-enabled number, not the headline figure, otherwise IDS/IPS will bottleneck your link once you turn them on.

Decide Between NGFW and UTM Early

NGFW and UTM describe overlapping feature sets, and most vendors ship both labels on the same box. The practical difference: UTM appliances bundle multiple security services (gateway AV, URL filtering, anti-spam, IPS) on a single subscription, while NGFW appliances typically focus on application-aware firewalling with optional add-on subscriptions. For a small business that wants one license decision, UTM-style bundles like SonicWall Essential Protection or Fortinet UTP are the cleanest path. For shops with stricter compliance needs, NGFW with explicit IPS and SSL inspection is the better fit.

Plan for the Subscription Renewal – Not Just Year One

Appliance price is what you pay in year one. Total cost of ownership over three years is what you actually spend. A FortiGate-60F bundle looks reasonable on day one and roughly doubles in cost over 36 months once UTP renews. UniFi or Firewalla alternatives have a flat hardware cost but lack the same depth of threat intelligence. Map out the 36-month spend before committing – a firewall you cannot afford to renew is a firewall that ages out of support.

Size to Deployment, Not Employee Count

The “1-5 / 5-25 / 15-50 / 50-100” labels above are based on real-world device counts, not headcount. A 10-person office with 60 devices (because of IoT, point-of-sale, and guest WiFi) needs more headroom than the employee number implies. Count the access points, IP phones, security cameras, and IoT devices – that is the number to size against.

Consider Open-Source Alternatives When IT Skill Allows

If your team has Linux or BSD comfort, pfSense and OPNsense deliver enterprise-grade firewalling on commodity hardware with no subscription. The trade-off is the management learning curve. For most small businesses without dedicated IT, a commercial appliance with subscription support is the lower-risk path. For shops with a technical founder or a part-time sysadmin, open source is worth considering.

What Happens When the Subscription Expires (and Why TCO Matters)

The single most expensive mistake SMBs make with subscription firewalls is not budgeting for renewal. r/sysadmin and r/msp threads document the failure modes consistently.

Fortinet FortiGate appliances keep most core firewalling when FortiGuard UTP lapses, but signature updates, IPS, anti-malware, and web filtering go stale – your protection degrades to consumer-router level. SonicWall firewalls behave similarly: the appliance still routes traffic, but the threat signature feed stops and Capture ATP sandboxing is disabled.

Cisco Meraki is the strictest. Once a Meraki license expires, the device goes into a 30-day grace period, after which it stops passing traffic entirely and becomes an inert box. This is the highest-stakes subscription model in this roundup, which is why the Meraki TCO calculation matters even if the hardware price looks competitive on day one.

Subscription firewalls are absolutely worth the cost in three scenarios: regulated environments that need signature attestation, MSP-managed deployments where the MSP handles renewals, and multi-site networks that benefit from the cloud dashboard. For everyone else, a no-subscription hardware firewall like the UniFi USG or one of the Fortinet appliance-only models paired with endpoint protection is often the better three-year value.

Frequently Asked Questions

The Right Network Attached Firewall for Your Small Business

For a small business already running UniFi gear, the UniFi Security Gateway (USG) remains the smartest no-subscription choice and the easiest to manage. For a 15-to-50 person office that needs compliance-grade threat intelligence, the FortiGate-60F with the 1-year UTP bundle is the cleanest path into NGFW territory. For multi-site SMBs that want a single cloud dashboard, the Cisco Meraki MX67-HW is the lowest-friction option if the subscription fits the budget.

If you are unsure where to start, match the firewall to your deployment size first (count endpoints, not employees), then verify the IDS/IPS-enabled throughput against your real internet link, then map out the three-year subscription cost. That sequence will land you on a network attached firewall your small business can actually run – and afford to keep running – for the next three years. Browse the latest options above and pick the one that fits your team size and budget.