The Ubiquiti UniFi UACC-CM-RJ45-1G is a high-reliability, standard SFP (Small Form-factor Pluggable) to RJ45 copper transceiver module.This accessory is used to convert an empty 1 Gbps SFP cage on a switch or edge gateway into a standard RJ45 Ethernet connection, allowing the integration of traditional copper patch cords into fiber-centric hardware architectures.