Features: 1. Compatible With PCI-E V1.0A 2. Four-Port Gigabit Server Network Card, Through Restrictions, Free Expansion, Bandwidth, Cache, Power Supply 3. Automatic Crossover Function 4. Automatic Detection And Correction Of Pair Exchange, Pair Tilt And Pair Polarity 5. Network software support: Windows* 2000; Windows* Server 2003; Windows* Server 2008; Windows Professional XP* SP3; Windows Vista* ; Windows 7; Linux* RHEL 4.6; Linux* version 2.6.24; Linux* version 2.4.36.2; RHEL 5.1 *; Sles * 9 sp4; Sles * 10 ; FreeBSD * 7.0; *;DOSODI *; SCO OpenServer 6/ unix * 7.1.x; Novell Network Software* 6.5; Xen *; FreeBSD * 5. X or above; ESX * 3. X* support (). 1. Bus Type: Pci-X 2. Port Type: Rj-45 3. Applicable Network Type: Gigabit Ethernet 4. Transmission Rate: 10/100/1000mbps 5. Transmission Medium: Copper 6.Size:10.2 x 6.87cm Material: PCB colour: As shown Package Contents: 1 x Network Card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.