For Intel82576 E1G42ET is to make and PHY functions in one chip. The maximum and best duplex mode for data reduces network collisions. Greatly increase the bandwidth of .Support remote function.PCIE slot, with thick gold plating, good contact and more stable operation.PCI-EX4 (x8 and x16 slots can be used simultaneously with X4).: Windows? Server 2003 SP2, Unified Storage Solution 2003 Windows Server 2008, Linux Stable Version 2.6, Linux RHEL4, EHEL 5, Linux SLES 9, Linux SLES 10, FreeBSD 7.0, UEFI? 1.1, ESX 3.xProduct Type: Desktop Network CardChip: 82576Applicable network type: Gigabit EthernetTransmission rate: 10/100/1000MbpsBus type: PCI-E X4Network Standard: IEEE 802.3adNetwork cable interface type: RJ-45Transmission medium type: 4 to 5 UTPFull-duplex/Half-duplex: full-duplex/half-duplex adaptiveLED Indicators: 4 LED IndicatorsColour:greenMaterial:PCBPackage Contents:1 x Network CardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.