Optech 10GBase copper transceiver is specifically designed for the high performance integrated duplex data link at 10Gigabit Ethernet over Cat 6a/7 cable. This is the first SFP+ transceiver that offers 10Gb/s communication over this type of media. Features *SFF-8431 and SFF-8432 MSA Compliant *IEEE 802.3az Compliant *Low Power Consumption (2.5W MAX- 30m) *Fast Retrain EMI Cancellation Algorithm *Low EMI *I2C 2-Wire Interface for Serial ID and PHY Register Access *Auto-negotiates with other 10GBase-T PHYs *Supports 100/1000Base-T using Cat 5e cable or better *MDI/MDIX Crossover *Multiple Loopback Modes for Testing and Troubleshooting *Unshielded and Shielded cable support *Compatible withCisco,Juniper,Arista,Extreme,Dell,IBM,Brocade