bus type: pci express 1.0a bus width: x4 lane pci express, operable in x4, x8, x16 slots bus speed(x1, encoded rate): 10gbps uni-directional; 20gbps bi-directional conn: 2 x rj-45 data rate(s) supporter per port: 10, 100, and 1000 mbps ntwk os supp: ms win svr 2003, enterprise, datacenter(32 & 64-bit), ms win 2000, red hat linux 2.4x /+(32 & 64-bit), freebsd 4.x/+, novell nw 5.x, 6.x, sun solaris x86, os 8 & +, sco open svr 5, openunix 8 ieee std/ntwk topology: 10base-t, 100base-tx, 1000base-t wiring: category-5, utp, 4-pair cable distance: 100 m in category-5 for 100/1000mbps; category-3 for 10mbps teaming supp: scales up to 8 connections multiple teams: supp 4 separate teams, max interrupt levels: inta ieee supp: 802.3ab hw certifications: fcc b, ul, ce, vcci, bsmi, ctick, mic controller-proc: intel 82571eb * built on intel lead-free1 technology * interrupt moderation delivers increase performance while significantly reducing cpu utilization * uses existing 4-pair cabling & saves re-wiring costs * intel proset utility for ms device manager provides point-&-click power over individual adapt, adv adapt features, connection teaming, & vlan config