Support Windows 7, 8.X, 10, 11 ,Windows Server 2008 , 2012, 2016, 2019,Linux 2.6.X to 5.X PCIe v1.0a (2.5 GT/s) X1 . Compatible with X1, X2,X4, X8, X16 standard and low-profile PCI Express slots. Compatible with IPMI pass-through (SMBus or NC-SI), iSCSI boot, PXE remote boot, VLAN filtering Supports Full Duplex Flow Control (IEEE 802.3x) alloy heat sink , can effectively remove excess heat , keep card at normal operating temperature and double stable operation Material: plastic colour: green Package Contents: 1 x Network Card 1 x short board Only the above package content, other products are not included. Note: Light 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.