This is a OCP SFP (Mini-GBIC) Transceiver 1310 NM, part number TRPN03I1ABYS. Designed to connect fiber optic cable to your switch/router. This is a NEW product, it has never been used, it was originally made for use as part of a system. We have re-packaged it for retail distribution. It is sold exactly as shown and does not include any additional parts.