product desc: intel pro/1000 pt quad port server adapter connectors: 4 x rj-45 ieee stds/ntwk topology: 10base-t, 100base-tx, 1000base-t wiring: category-5, unshielded twisted pair (utp), 4-pair data rate supp per port: 10, 100, and 1000 mbps bus type: pci express 1.0a bus width: x4 lane pci express, operable in x4, x8, x16 slots bus speed(x4, encoded rate): 10gbps uni-directional; 20gbps bi-directional interrupt levels: inta ieee support: 802.3ab hw certifications: fcc b, ul, ce, vcci, bsmi, ctick, mic cntrl proc: intel 82571gb typical power consumption: 4.95w