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Silver 1U rackmount firewall appliance with eight copper RJ45 ports and two SFP+ cages on the front panel

Sophos

Sophos XGS 3100 XG3ATCHUS firewall appliance 8 GE 2 SFP+ 12 GB DDR4 240 GB SATA

SKU CH-3F1J-S2YJS MPN XG3ATCHUS

A 1U rack-mount firewall with eight gigabit copper ports, two SFP+ 10 GbE uplinks, 12 GB DDR4 memory and a 240 GB SATA drive

  • Firewall TypeFirewalls / Security Appliances
  • TypeWired
  • Wireless TechnologyNone
  • Ports8 x GE copper 2 x SFP GE Fiber 2 x SFP+ 10 GE Fiber 1 x RJ45
  • Wired Speed10/100/1000Base-T 10GBase-X
  • FeaturesForm Factor: 1U Short CPU: AMD x86 CPU Memory: 12 GB (2666)

Model XGS 3100

Option Hardware Only

  • TLS 1.3 inspection decrypts encrypted traffic at 2.47 Gbps
  • Zero-day threat protection uses machine learning and sandboxing
  • FastPath acceleration offloads trusted traffic to boost performance
  • SD-WAN orchestration manages multiple WAN links and branch overlays
  • Dual-processor architecture runs all protection features without compromise

Mid-size network security appliance

The Sophos XGS 3100 is a 1U rack-mountable firewall designed for mid-sized and distributed organisations that need consolidated threat protection and SD-WAN orchestration. Eight copper Gigabit ports, two SFP Gigabit ports and two SFP+ 10 Gigabit ports provide flexible WAN and LAN connectivity. A dedicated management port, console access via RJ45 or micro-USB, and front USB 3.0 ports simplify local administration.

Sustained throughput with dual-processor offload

A dedicated Xstream Flow Processor offloads trusted application traffic to a FastPath, reducing CPU overhead during prolonged inspection workloads. Firewall throughput reaches 47 Gbps while TLS 1.3 inspection sustains 2.47 Gbps and IPS throughput holds at 10.5 Gbps. The AMD x86 CPU with 12 GB DDR4-2666 memory and the Marvell NPU with 4 GB DDR4 maintain consistent performance under continuous encrypted-traffic analysis.

Compact 1U chassis with redundant power option

The short-depth 438 x 405 x 44 mm enclosure weighs 4.7 kg and fits standard racks using the included mount kit. A second power supply can be added for resilience, and a centrally powered PoE Flexi Port module option supports redundant power for attached PoE devices. One 240 GB SATA-III SSD provides local log and signature storage without RAID.

Highlights

  • TLS 1.3 inspection decrypts encrypted traffic at 2.47 Gbps
  • Zero-day threat protection uses machine learning and sandboxing
  • FastPath acceleration offloads trusted traffic to boost performance
  • SD-WAN orchestration manages multiple WAN links and branch overlays
  • Dual-processor architecture runs all protection features without compromise

Specifications

BrandSophos
SeriesXGS
ModelXGS 3100
Part NumberXG3ATCHUS
Firewall TypeFirewalls / Security Appliances
TypeWired
Wireless TechnologyNone
Ports8 x GE copper
2 x SFP GE Fiber
2 x SFP+ 10 GE Fiber
1 x RJ45 MGMT
1 x COM RJ45
1 x COM Micro-USB
2 x USB 3.0 (front)
1 x USB 2.0 (rear)
Wired Speed10/100/1000Base-T
10GBase-X
FeaturesForm Factor: 1U Short
CPU: AMD x86 CPU
Memory: 12 GB (2666) DDR4
Xstream Flow Processor (NPU): Marvell NPU
Memory: 4 GB DDR4
SSD/Storage size: 1x min. 240 GB SATA-III
RAID Support: None
Expansion Slots: None
MTBF (hours): 110,442
Features:
firewall protection
Web threat protection
Intrusion Prevention System (IPS)
Deep Packet Inspection (DPI)
Zero-Touch Deployment
firmware upgradable
SD-WAN support
VPN support
Dimensions438 x 405 x 44 mm
Weight4.7 kg / 10.36 lbs (unpacked)
7 kg / 15.43 lbs (packed)
Shipping weight6.40 kg
Package size549 × 470 × 150 mm

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Questions about this item

How much heat and power should I expect from the XGS 3100 running 24/7 in a 1U rack?

The chassis measures 44 mm high, 438 mm wide and 405 mm deep and weighs 4.7 kg unpacked. Dual-processor architecture and the Marvell NPU offload inspection work, keeping sustained load inside the 1U thermal envelope.

Which cables and transceivers do I need on day one to light up the 10 GbE uplinks?

Two SFP+ cages accept 10GBase-X modules; eight RJ-45 ports run 10/100/1000Base-T copper. You supply the SFP+ optics or DACs and the Cat5e-or-better patch leads for the copper ports.

Will the XGS 3100 interoperate with my existing Sophos SG series units on the same Central dashboard?

Yes — the appliance runs Sophos Firewall OS and registers to Sophos Central alongside older SG hardware, sharing policies, SD-WAN orchestration and synchronized security heartbeat without replacing the legacy boxes.

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