5-user startup
A new startup office uses a single FortiGate 40F for internet access, AWS VPC site-to-site VPN and ZTNA. One device covers all security. ~$100/year operating cost.
Fortinet · FortiGate NGFW
FortiGate 40F
5 Gbps firewall for micro offices up to ~10 users.
Quick answer
FortiGate 40F is Fortinet's smallest hardware NGFW, purpose-built for 5–10 user micro offices: 5x GbE ports, 5 Gbps firewall throughput and 800 Mbps threat prevention. It runs on an SoC ASIC, is fanless and silent; the 40F-3G4G variant adds LTE failover.
FortiGate 40F is the smallest hardware member of the FortiGate family. Its fanless design keeps office environments silent; it offers 5 × 1 GbE ports (configurable 4 LAN + 1 WAN).
Variants: 40F (standard), 40F-3G4G (LTE dongle), 40F-PoE (4× PoE port). Ideal for SMBs, executive home offices and micro branches. Supports FortiOS 7.4/7.6 LTS.
Enterprise-grade quality at micro scale: the 40F brings enterprise NGFW capabilities that consumer-grade routers (TP-Link, Asus, Mikrotik hAP) cannot match — at a price reachable for micro offices. FortiGuard threat intelligence, application control (1,500+ application signatures), web filtering (90+ categories), antivirus, and IPS (10,000+ attack signatures) can all run on a 40F. SMBs gain a security level that consumer hardware simply cannot deliver.
Fanless silent design advantage: there are no moving parts inside the 40F (no fan, no HDD). Passive cooling means 0 dB acoustic output; ideal for home offices, small clinics, boutique retail. MTBF (Mean Time Between Failure) is 2–3x longer than fanned devices — typical lifespan exceeds 10 years. Typical power draw is 12W; annual electricity cost is negligible.
5G/LTE dongle and mobile scenarios: the 40F-3G4G variant is designed for sites where there is no ethernet WAN, or where LTE/5G failover is needed. Fortinet-certified dongles plugged into the USB-A port work with Turkish carriers' SIM cards (data-only recommended). Emergency operations, temporary points of sale, ATMs, mobile cell sites and disaster recovery sites can be online in 15 minutes with secure enterprise internet.
Simple yet strong remote access via ZTNA: traditional VPN clients (FortiClient) are complex even for small teams. The 40F's built-in ZTNA Application Gateway lets employees reach corporate applications from a browser (SSL portal). User + device + application-level authorization; microsegmentation ensures only authorized users see authorized apps. A typical 8-person startup is up in 30 minutes.
Free mobile management with FortiGate Cloud: 40F owners use FortiGate Cloud SaaS for free (up to 5 devices). The mobile app (iOS/Android) shows device status, applies basic policy changes and pushes alarm notifications. The ideal management interface for SMBs without a dedicated network engineer.
- 5x GbE ports
- 5 Gbps firewall
- 800 Mbps threat prevention
Key features
What this model offers
- 5 Gbps firewall, 800 Mbps threat prevention
- Built-in SD-WAN and ZTNA (no extra license)
- 5x GbE RJ45 ports (configurable WAN/LAN/DMZ)
- LTE failover (40F-3G4G model)
- PoE+ support (40F-PoE model, 4 PoE ports)
- Fanless silent operation (0 dB)
- Free FortiGate Cloud management
- Mobile app (iOS/Android) management
- FortiGuard threat intelligence (signature DB)
- 1,500+ application control signatures
- 90+ web filtering categories
- FortiSandbox integration
- FortiAnalyzer log forwarding
- Low power consumption (~12 W typical)
Tech Summary
Technical data
- Firewall throughput
- 5 Gbps
- IPS throughput
- 1 Gbps
- Threat prevention
- 800 Mbps
- SSL inspection
- 300 Mbps
- VPN throughput (IPsec)
- 4.4 Gbps
- Concurrent sessions
- 700,000
- New sessions/sec
- 20,000
- Ports
- 5x GbE RJ45
- Form factor
- Desktop, fanless
- Power consumption (typical)
- 12 W
- Dimensions (W×D×H)
- 210 × 130 × 35 mm
- Weight
- 0.6 kg
Use CasesMicro office Executive home office Micro branch Clinic Education
At what scale is this model preferred?
Hybrid executive setup
A hybrid C-level executive's home office uses a 40F for corporate VPN and ZTNA. The device is fanless and silent; work traffic runs in an isolated VLAN from home internet.
Retail store / depot
A small retail store uses 40F-3G4G with a Turkcell LTE backup link, protects the POS system and isolates store Wi-Fi. Remote access enabled after-hours.
Family practitioner clinic
A family practitioner's clinic uses a 40F to protect the prescription system and patient scheduling app, with KVKK/GDPR-compliant patient data encryption.
Kindergarten / preschool
A 20-pupil preschool runs internet filtering (block inappropriate content) on the 40F with isolated teacher/admin Wi-Fi and secured parent portal access.
Who is it for?
5–10 user micro offices, executive home offices, micro branches/retail stores, small clinics, kindergartens/preschools, ATMs and self-service kiosks.
Frequently Asked Questions
Common questions about this model
How many users can the FortiGate 40F support?
It is optimized for 5–10 users. It can be pushed to 10–15 users, but with SSL inspection on, performance degrades past 5 users. For more users, choose the 60F (10–30 users) or 70G (20–50 users).
What's the difference between 40F-3G4G and the standard 40F?
40F: ethernet WAN only. 40F-3G4G: supports LTE/4G dongles over USB as a backup or sole connection. Preferred for branches, mobile offices and points without easy cable access. No SIM slot on the unit; the dongle is external.
Is there a Wi-Fi-enabled version?
No, the 40F does not have a Wi-Fi version. Two options for Wi-Fi: (a) 40F + a separate FortiAP-23JF or FAP-231F access point; (b) move up to the 60F-Wi-Fi or 90G-Wi-Fi. The most economical micro-office Wi-Fi 6 combo is 40F + FAP-23JF (~$300 extra).
What does licensing look like?
One-off hardware purchase + annual FortiCare support + FortiGuard threat intelligence subscription. The UTM Bundle (FortiCare + all FortiGuard services) is the most common choice; a 3-year bundle is ~20% discounted. Typical annual subscription: $100–150.
What is the SSL inspection performance?
About 300 Mbps SSL inspection. Enough for a 5-user office (Office 365, Zoom, Teams traffic inspect cleanly); for heavy large-file transfers or non-CDN video streaming it can fall short — in that case choose the 70G (3.2 Gbps SSL).
How long is the warranty?
The hardware ships with 3-year FortiCare standard (9x5 NBD — next business day replacement). Premium 24x7 + 4-hour onsite response can be added (~30% extra). Standard is enough for non-mission-critical micro offices.
Can I install the 40F myself?
Yes — basic setup via the FortiGate Cloud mobile app takes about 30 minutes. For enterprise security policies, IPSec VPN or ZTNA, however, an NSE-certified engineer (Sora Yazılım) is recommended. A typical full deployment runs 4–6 hours.
Why a 40F over software firewalls (pfSense, OPNsense)?
pfSense/OPNsense are free, but: (a) require an experienced admin to deploy, (b) lack enterprise threat intelligence (no FortiGuard equivalent), (c) IPS signature quality is well below commercial vendors, (d) no commercial support. If you want enterprise security, the 40F's value is clear.
What's the benefit of the PoE+ model?
40F-PoE: each of the 4 ports supports PoE+ (30W). Powers IP phones, IP cameras and small FortiAP devices directly — no separate switch needed. 4x PoE+ = 120W total budget; enough for a micro-office scenario.
How fast is delivery from stock?
Türkiye distributors keep continuous stock. 1–2 business day delivery. As an authorized Fortinet channel partner Sora Yazılım offers fast supply; same-day delivery can be arranged on exceptional urgency.
Vendor's official model page
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Fortinet — FortiGate 40F →Same Family
Other models of this product
FortiGate 60F
10 Gbps firewall for 10–30 user small offices.
DetailsFortiGate 70G
Successor to the 60F; 2x performance at the same price, SD-WAN-optimized.
DetailsFortiGate 80F
50–100 user branch with PoE+ ports to power FortiAP/FortiSwitch.
DetailsFortiGate 90G
Successor to the 80F; SP5 ASIC, 2x performance, high PoE budget.
DetailsFortiGate 40F — licensing + deployment + support
Sora Yazılım handles sizing, licensing, deployment and ongoing management — all from a single team.