TP-Link TL-SM331T 1000Base-T RJ45 SFP Module 1.25G Copper SFP Transceiver SFP to Ethernet Plug and Play Hot Pluggable Up to 100m.

Transmit data seamlessly up to 100 meters between your SFP interface and the copper gigabit port. Compatible with most fiber switches, media converters, routers or other fiber optic equipments with SFP ports, TL-SM331T provides additional copper cable connections for peace of mind. Plug and Play with no software installation or configuration/technician needed. Ensures strength and reliability for a long time, maintaining a stable connection in a wide range of environments. Plug in or remove your SFP module without needing to shutdown your network. Hot swap-ability ensures your network always stays up.