10G SFP+ Copper RJ45 Module, 10Gb SFP+ to RJ-45, 10GBASE-T MINI gbic Transceiver for Arista SFP-10GE-T, up to 30m : Amazon.co.uk: Computers & Accessories
Cable Matters 1000BASE-T Gigabit SFP to RJ45 Copper Ethernet Modular Transceiver for Cisco, Ubiquiti, TP-Link, Huawei, Mikrotik, Netgear, and Supermicro Equipment: Amazon.co.uk: Computers & Accessories