This Cisco compatible SFP+ transceiver provides 100/Base-TX throughput up to 30m over a copper connection via a RJ-45 connector. This TX module supports 100/Base auto-negotiation and can be configured to fit your needs. Our transceiver is built to meet or exceed OEM specifications and is guaranteed to be 100% compatible with Cisco. It has been programmed, uniquely serialized, and tested for data-traffic and application to ensure that it will initialize and perform identically.