1、Adopt 82583V gigabit controller chipset and RJ‑45 copper wire connector 2、PCI Express 0a bus type with ×1 lane width, which can run in x1, x4, ×8, ×16 slots 3、Each port support 10, 100 and 1,000‑Mbps different data transfer rate 4、Support 10BASE‑T, 100BASE‑TX, 1000BASE‑T IEEE standard/network topology 5、Applicable with gigabit ethernet network of server/desktop computer field 6、Equipped with 2 steady and flashing LED light (1/port, link and speed) 7、Screw‑in brackets included with each adapter have two different types of high and low 1 x Single Port Network Card1 x Short Baffle Item Type: Single port network cardData Rate Each Port: 1GbESystem Interface Type: PCIe v 1.0a ( 2.5 GT/s)Supported Interface: 1000Base-TOperating System: For Windows XP/Windows7/Windows8/Windows10/Windows2000/Windows Server2003/Windows Server2008/Windows Vista x SP1/Linux x RHEL 4.6/Linux x kernel version 2. 6.24/Linux x kernel version 2. 4. 36.2/RHEL x 5.1/SLES x 9 SP4/SLES x 10 SP1/FreeBSD x 7.0/DOS/DOSODI/SCO OpenServer 6/Unixware x 7. 1.x/Novell Nerware x 6.5/Xen/FreeBSD x 5.X or higher/ESX x 3.X x support (for VMware)