Sophos 4 port GbE copper PoE FleXi Port module + Power Supply Kit (for SG/XG 210 rev.3 & 230/3x 4xx rev.2) with EUK Power Cord (SGIZT2JEUK) | Buy for less with consulting and support
Sophos Flexi Port Module 8 Port GbE Copper (for SG/XG 2xx/3xx/4xx only) | laboratoriosarot.com
Amazon.co.jp: Sophos 2 Port 10GbE SFP+ Flexi Port Module (for SG/X G 2xx/3xx/4xx only) : Computers
Sophos FleXi Port Module - 8 port GbE copper [XSBZTCHC8] - Avanet
Amazon.com: Sophos Flexi Port Module 8 Port GbE Copper (for SG/XG 2xx/3xx/4xx only) : Electronics