Fortinet · High-end FortiGate
Fortinet FortiGate 3800G
The Fortinet FortiGate 3800G is a rackmount firewall that runs FortiOS. Fortinet publishes a firewall throughput of 795 / 793 / 453 Gbps and a threat protection throughput of 200 Gbps for it. It has 4 x 400GE, 6 x 200GE QSFP56, 18 x 50GE SFP56, 2 x 10GE RJ45. Versions: DC model, FortiGate 3801G (storage).
- Firewall throughput
- 795 / 793 / 453 Gbps
- Threat protection
- 200 Gbps
- IPsec VPN
- 210 Gbps
- Form
- Rackmount
Who it suits
As a rackmount unit it suits a head office, campus or data centre with a server rack. With protection switched on, plan for an internet line of no more than about two-thirds of the threat protection throughput figure. For the FortiGate 3800G that means a line of up to about 133 Gbps.
Fortinet FortiGate 3800G specifications
| Performance | |
|---|---|
| Firewall throughput | 795 / 793 / 453 Gbps |
| IPS throughput | 250 Gbps |
| NGFW throughput | 210 Gbps |
| Threat protection throughput | 200 Gbps |
| IPsec VPN throughput | 210 Gbps |
| TLS inspection throughput | 120 Gbps |
| Maximum concurrent sessions | 210 million |
| New sessions per second | 1.1 million |
| Hardware | |
| Form factor | 3 RU |
| Ports | 4 x 400GE, 6 x 200GE QSFP56, 18 x 50GE SFP56, 2 x 10GE RJ45 |
| Storage | 2 x 1.92 TB on the 3801G |
| Power supply | 4 power supplies |
| Versions sold | DC model, FortiGate 3801G (storage) |
Specifications from Fortinet's published data, checked October 2026. See Fortinet's firewall pages. Throughput figures are each manufacturer's own published numbers. Manufacturers test in different ways, so compare across brands with care. Confirm details before ordering.
What we do with it
- Supply
Firewall supply and installation
The right-sized firewall from any of the five brands, with its licence, installed and configured at your site.
- Audit
Firewall configuration and audit
A review of your rules, firmware, admin access and VPNs, with the weak points fixed and written down.
- Renewal
Firewall licence renewal
Renewals for FortiGuard, Sophos, Palo Alto Networks, SonicWall and Juniper subscriptions, quoted from your serial number.
- Migrate
Firewall migration
Move from an old firewall to a new one, same brand or another, with the rules and VPNs carried over.
Questions about the FortiGate 3800G
What internet speed can the FortiGate 3800G handle?
Fortinet publishes a threat protection throughput of 200 Gbps for the FortiGate 3800G. Leaving headroom for busy hours, that suits an internet line of up to about 133 Gbps with protection switched on. With inspection off, its firewall throughput is 795 / 793 / 453 Gbps.
What ports does the FortiGate 3800G have?
4 x 400GE, 6 x 200GE QSFP56, 18 x 50GE SFP56, 2 x 10GE RJ45.
How many connections can the FortiGate 3800G handle?
Fortinet lists a maximum of 210 million concurrent sessions and 1.1 million new sessions per second.
Does the FortiGate 3800G need a licence?
The hardware works as a basic firewall on its own. Protection features such as intrusion prevention, web filtering and anti-malware need an active Fortinet subscription, and so do firmware updates and support. We quote the firewall with the licence term you choose.
Do you supply the FortiGate 3800G with installation?
Yes. We supply it with its licence registered, install and configure it at your site, and hand over the logins and documentation. Ask for a quote on this page.
Similar Fortinet models
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Fortinet FortiGate 3500G
Firewall 595 / 590 / 420 Gbps, threat protection 105 Gbps
- Rackmount
Fortinet FortiGate 3000G
Firewall 397 / 394 / 234 Gbps, threat protection 80 Gbps
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Fortinet FortiGate 3700F
Firewall 589 / 589 / 420 Gbps, threat protection 75 Gbps
- Rackmount
Fortinet FortiGate 4400F
Firewall 1.15 / 1.14 / 0.50 Tbps, threat protection 75 Gbps
Closest models from other brands
Throughput figures are each manufacturer's own published numbers. Manufacturers test in different ways, so compare across brands with care.
- Rackmount
Sophos XGS 8500
Firewall 190 Gbps, threat protection 92.5 Gbps
- Rackmount
Palo Alto Networks PA-5560
Firewall 240 Gbps, threat protection 180 Gbps
- Rackmount
SonicWall NSsp 15700
Firewall 105 Gbps, threat protection 82 Gbps
- Rackmount
Juniper SRX4700
Firewall 1.4 Tbps, threat protection 100 Gbps (NGFW)