Allied Telesis - AT-SPSX-90 SFP (mini-GBIC) Transceiver Module - For Data Networking, Optical Network - 1 x LC 1000Base-SX Network - Opti - Possibly Black

The AT-SPSX offers a short-haul option to extend your network to 550m The AT-SPSX is compatible with all the Allied Telesis range of products which have an SFP port.