Fortinet
FG-900GFortinet FortiGate 900G
List PriceThe Fortinet FortiGate 900G combines AI-powered security and machine learning to deliver threat protection at scale, with deep visibility into applications, users and devices. It delivers 164 Gbps firewall throughput, 26 Gbps IPS throughput and 20 Gbps full threat protection throughput.
It runs the same AI/ML-powered FortiGuard security services and integrated Security Fabric platform as the rest of the G-series, combining edge protection, network segmentation and secure SD-WAN in a single appliance to reduce complexity across hybrid IT networks.
Universal ZTNA controls, verifies and facilitates user access to applications, reducing lateral threats by granting access only to validated users, while high-throughput threat protection and SSL inspection secure the edge without a heavy performance penalty.
Key features
- 164 / 163 / 153 Gbps IPv4 firewall throughput (1518/512/64-byte UDP), 3.78/2.5 μs latency, 229.5 Mpps
- 26 Gbps IPS and 22 Gbps NGFW throughput (enterprise mix), 20 Gbps full threat protection
- 55 Gbps IPsec VPN throughput, 2,000 gateway-to-gateway and 50,000 client-to-gateway tunnels
- 16 million concurrent sessions, 720,000 new sessions per second, 10,000 firewall policies
- 4× 25GE SFP28 / 10GE SFP+ / GE SFP ultra-low-latency slots, 4× 10GE SFP+/GE SFP slots, 8× GE SFP slots, 16× GE RJ45 slots
- 1× 2.5GE/GE HA port, 1× GE management port, 2× USB client/server ports
- Trusted Platform Module (TPM) onboard; 2× SFP SX transceivers included
- Security Fabric management for up to 1,024 FortiAPs, 96 FortiSwitches and 5,000 FortiTokens
- Hot-swappable redundant power supplies, 80Plus compliant, rack mount 1RU
Works with
Frequently asked questions
Bundle or hardware only?
Hardware only is the appliance with no FortiGuard subscription — for buyers who licence separately or are renewing existing cover. Bundles add FortiCare Premium support plus FortiGuard UTP or Enterprise Protection services for 1, 3 or 5 years in a single SKU.
What's the difference between the 900G and 901G?
The 901G adds 2× 480 GB onboard SSD storage for local logging and reporting; the 900G has none. The 901G also weighs marginally more (16.53 lbs against 15.98 lbs) and draws slightly more power (144 W / 264 W average/maximum against 134 W / 252 W). All other headline specifications match.
Is the 900G right for a large enterprise or data-centre edge?
With 164 Gbps firewall throughput, 16 million concurrent sessions and Security Fabric management for over 1,000 FortiAPs, the 900G is built for large enterprise cores and data-centre edges rather than a branch site.
Sizing a FortiGate deployment? Call 0333 242 1314 or email sales@clisecure.com.
Interfaces and Modules
| Hardware Accelerated 25 GE SFP28 / 10 GE SFP+ / GE SFP Ultra Low Latency Slots | 4 |
|---|---|
| Hardware Accelerated 10 GE SFP+ / GE SFP Slots | 4 |
| Hardware Accelerated GE SFP Slots | 8 |
| Hardware Accelerated GE RJ45 Slots | 16 |
| 2.5 GE / GE HA Port | 1 |
| GE Management Port | 1 |
| USB Ports (Client / Server) | 2/2 |
| Console Port | 1 |
| Onboard Storage | No |
| Trusted Platform Module (TPM) | Yes |
| Included Transceivers | 2x SFP SX |
System Performance — Enterprise Traffic Mix
| IPS Throughput | 26 Gbps |
|---|---|
| NGFW Throughput | 22 Gbps |
| Threat Protection Throughput | 20 Gbps |
System Performance and Capacity
| IPv4 Firewall Throughput (1518 / 512 / 64 byte, UDP) | 164 / 163 / 153 Gbps |
|---|---|
| IPv6 Firewall Throughput (1518 / 512 / 86 byte, UDP) | 164 / 163 / 153 Gbps |
| Firewall Latency (64 byte, UDP) | 3.78 / 2.5 μs |
| Firewall Throughput (Packet per Second) | 229.5 Mpps |
| Concurrent Sessions (TCP) | 16 Million |
| New Sessions/Second (TCP) | 720 000 |
| Firewall Policies | 10 000 |
| IPsec VPN Throughput (512 byte) | 55 Gbps |
| Gateway-to-Gateway IPsec VPN Tunnels | 2000 |
| Client-to-Gateway IPsec VPN Tunnels | 50 000 |
| SSL-VPN Throughput | 10 Gbps |
| Concurrent SSL-VPN Users (Recommended Maximum, Tunnel Mode) | 10 000 |
| SSL Inspection Throughput (IPS, avg HTTPS) | 16.7 Gbps |
| SSL Inspection CPS (IPS, avg. HTTPS) | 18 000 |
| SSL Inspection Concurrent Session (IPS, avg HTTPS) | 1.6 Million |
| Application Control Throughput (HTTP 64K) | 74.8 Gbps |
| Virtual Domains (Default / Maximum) | 10 / 10 |
| Maximum Number of FortiSwitches Supported | 96 |
| Maximum Number of FortiAPs (Total / Tunnel) | 1024 / 512 |
| Maximum Number of FortiTokens | 5000 |
| High Availability Configurations | Active-Active, Active-Passive, Clustering |
Dimensions and Power
| Height x Width x Length (inches) | 1.5 x 17.0 x 15.0 |
|---|---|
| Height x Width x Length (mm) | 44.45 x 432 x 380 |
| Weight (maximum) | 15.98 lbs (7.25 kg) |
| Form Factor | Rack Mount, 1RU |
| AC Power Supply | 100–240VAC, 50/60 Hz |
| AC Current (Maximum) | 6A@100VAC |
| Power Consumption (Average / Maximum) | 134 W / 252 W |
| Heat Dissipation | 861 BTU/h |
| Power Supply Efficiency Rating | 80Plus Compliant |
| Redundant Power Supplies (Hot Swappable) | Yes (comes with 2PSU default) |
Operating Environment and Certifications
| Operating Temperature | 32°–113°F (0°–45°C) |
|---|---|
| Storage Temperature | -31°–158°F (-35°–70°C) |
| Humidity | 10%–90% non-condensing |
| Noise Level | 58 dBA |
| Forced Airflow | Side and Front to Back |
| Operating Altitude | Up to 10 000 ft (3048 m) |
| Compliance | FCC Part 15 Class A, RCM, VCCI, CE, UL/cUL, CB |
| Certifications | USGv6/IPv6 |
Product details
| Brand | Fortinet |
|---|---|
| Part number | FG-900G |
Interfaces and Modules
| Hardware Accelerated 25 GE SFP28 / 10 GE SFP+ / GE SFP Ultra Low Latency Slots | 4 |
|---|---|
| Hardware Accelerated 10 GE SFP+ / GE SFP Slots | 4 |
| Hardware Accelerated GE SFP Slots | 8 |
| Hardware Accelerated GE RJ45 Slots | 16 |
| 2.5 GE / GE HA Port | 1 |
| GE Management Port | 1 |
| USB Ports (Client / Server) | 2/2 |
| Console Port | 1 |
| Onboard Storage | No |
| Trusted Platform Module (TPM) | Yes |
| Included Transceivers | 2x SFP SX |
System Performance — Enterprise Traffic Mix
| IPS Throughput | 26 Gbps |
|---|---|
| NGFW Throughput | 22 Gbps |
| Threat Protection Throughput | 20 Gbps |
System Performance and Capacity
| IPv4 Firewall Throughput (1518 / 512 / 64 byte, UDP) | 164 / 163 / 153 Gbps |
|---|---|
| IPv6 Firewall Throughput (1518 / 512 / 86 byte, UDP) | 164 / 163 / 153 Gbps |
| Firewall Latency (64 byte, UDP) | 3.78 / 2.5 μs |
| Firewall Throughput (Packet per Second) | 229.5 Mpps |
| Concurrent Sessions (TCP) | 16 Million |
| New Sessions/Second (TCP) | 720 000 |
| Firewall Policies | 10 000 |
| IPsec VPN Throughput (512 byte) | 55 Gbps |
| Gateway-to-Gateway IPsec VPN Tunnels | 2000 |
| Client-to-Gateway IPsec VPN Tunnels | 50 000 |
| SSL-VPN Throughput | 10 Gbps |
| Concurrent SSL-VPN Users (Recommended Maximum, Tunnel Mode) | 10 000 |
| SSL Inspection Throughput (IPS, avg HTTPS) | 16.7 Gbps |
| SSL Inspection CPS (IPS, avg. HTTPS) | 18 000 |
| SSL Inspection Concurrent Session (IPS, avg HTTPS) | 1.6 Million |
| Application Control Throughput (HTTP 64K) | 74.8 Gbps |
| Virtual Domains (Default / Maximum) | 10 / 10 |
| Maximum Number of FortiSwitches Supported | 96 |
| Maximum Number of FortiAPs (Total / Tunnel) | 1024 / 512 |
| Maximum Number of FortiTokens | 5000 |
| High Availability Configurations | Active-Active, Active-Passive, Clustering |
Dimensions and Power
| Height x Width x Length (inches) | 1.5 x 17.0 x 15.0 |
|---|---|
| Height x Width x Length (mm) | 44.45 x 432 x 380 |
| Weight (maximum) | 15.98 lbs (7.25 kg) |
| Form Factor | Rack Mount, 1RU |
| AC Power Supply | 100–240VAC, 50/60 Hz |
| AC Current (Maximum) | 6A@100VAC |
| Power Consumption (Average / Maximum) | 134 W / 252 W |
| Heat Dissipation | 861 BTU/h |
| Power Supply Efficiency Rating | 80Plus Compliant |
| Redundant Power Supplies (Hot Swappable) | Yes (comes with 2PSU default) |
Operating Environment and Certifications
| Operating Temperature | 32°–113°F (0°–45°C) |
|---|---|
| Storage Temperature | -31°–158°F (-35°–70°C) |
| Humidity | 10%–90% non-condensing |
| Noise Level | 58 dBA |
| Forced Airflow | Side and Front to Back |
| Operating Altitude | Up to 10 000 ft (3048 m) |
| Compliance | FCC Part 15 Class A, RCM, VCCI, CE, UL/cUL, CB |
| Certifications | USGv6/IPv6 |
Product details
| Brand | Fortinet |
|---|---|
| Part number | FG-900G |
Customer reviews
Built for B2B buying
From product selection to deployment, this is made for real projects.
Get the hardware, licences and supporting kit you need without chasing multiple suppliers. CLI Secure helps trade buyers confirm fit, stock, delivery and project pricing before checkout.
Why choose us
Procurement that feels fast, clear and trade-ready.
Every product page is designed to help you move from shortlist to checkout with fewer unknowns.
Common questions
Product and order FAQs
Can I request trade or bulk pricing?
Yes. For multi-unit, reseller or project orders, contact CLI Secure and our team can review the basket for trade pricing.
How quickly can this be delivered?
Available delivery options are shown at checkout. Many in-stock products support next-day or timed UK delivery.
Can you help confirm compatibility?
Yes. Share the existing setup, model numbers or project requirement and we can help confirm suitable hardware, licences or accessories.
Do you supply renewals and supporting accessories?
CLI Secure supplies hardware, renewals, licences and related accessories across networking, CCTV, VoIP and IT support categories.





