The IBM SFP 1000BASE-T (RJ-45) Transceiver module (00AY240) is a 10/100/1000 Base-T Small-Form-Factor, hot-pluggable (SFP) transceiver that plugs into an SFP SGMII data port, and is compatible with 1000Base-X auto-negotiation. It provides 10/100/1000 Megabit connectivity for up to 100 meter distances using category 5 twisted pair copper cabling. This Gigabit Ethernet 1000BASE-T transceiver module provides excellent performance in port-dense networks with challenging thermal environments. It is also compliant with IEEE 802. 3ab, transferring a 10/100/1000 Megabit data stream over shielded/unshielded twisted pair (UTP) category 5, 5e, or 6 cabling.