Sophos · XGS 4300

Sophos XGS 4300 firewall

Next-generation firewall delivering 75,000 Mbps firewall throughput and 8,000 Mbps of Xstream TLS inspection. Built for a data-centre edge.

In plain terms: Size on the TLS inspection figure, not firewall throughput. Almost all web traffic is encrypted, so 8,000 Mbps is what actually limits inspection on this model.

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Metric	Sophos XGS 4300
Firewall throughput	75,000 Mbps
IPS throughput	29,500 Mbps
Threat protection throughput	26,200 Mbps
Xstream TLS inspection	8,000 Mbps
IPsec VPN throughput	62,500 Mbps
Concurrent connections	16,600,000

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What are the Sophos XGS 4300 specifications?+

The XGS 4300 delivers 75,000 Mbps firewall throughput, 29,500 Mbps IPS, 26,200 Mbps threat protection and 8,000 Mbps of Xstream TLS inspection, supporting 16,600,000 concurrent connections.

How many users does the XGS 4300 support?+

Sophos does not publish user counts per model, so we do not quote them. Sizing depends on your internet speed, how many services you enable and how much traffic you inspect. Send us those three and we will size it against the Sophos sizing tool.

Should I size on firewall throughput or TLS inspection?+

Size on TLS inspection. Almost all web traffic is encrypted, so the 8,000 Mbps TLS figure is what limits real-world inspection. The firewall throughput figure assumes unencrypted traffic you will rarely see.

Standard or Xstream Protection?+

Xstream adds TLS 1.3 inspection, cloud sandboxing and the advanced IPS. For any site whose users browse the web, Xstream is the bundle that inspects encrypted traffic. Standard covers the base firewall plus SD-WAN and ZTNA.

Can this model be expanded later?+

Rackmount XGS models have one Flexi Port bay that takes an expansion module, including 10 Gigabit fibre, PoE and high-density copper.

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