PCI 3.1 :5GT/s Support for x4 width (),Compatible for PCIe X4,X8,X16,Comes with low profile bracket Network Interfaces:Integrated + BASE-T PHY. (Copper) standard IEEE 802.3 Ethernet interface for 2500BASE-T, 1000BASE-T, 100BASE-TX, and 10BASE-TE applications (802.3, 802.3u, 802.3bz, and 802.) NOTE : Each port has its own individual address starting with 1CFD08 Support Win10/11,Linux 5.8/5.16.18,RHEL 8.1/8.3/8.6, x 22.04 ,FreeBBSD 13.0, ESXi7.0/8.0,DPDK 20.05/22.07,OPENWRT/UNRAID/PVE.Support PXE function Color: As Shown Material: metal Package Contents: 1 x pcs PCIe I225-V 2.5G 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.