1.25G Gigabit Ethernet Network Card with Broadcom BCM5751 Controller-10/100/1000Mbps Ethernet Network Adapter(NIC) Compatible for BCM5751-T1, Single RJ45 Copper Port, PCI-Express 2.1 X1

Ultra Fast Speed\u2014 RJ-45 ports 10/100/1000Mbps let you connect to Cat5/5e network cable and upgrade your Ethernet speed to gigabit easily
Stable Performance\u2014 Equipped with original Broadcom BCM5751 controller chip which supports Intelligent Offloads and make your server more stable
PCIe2.1, x1 Lane\u2014 High-performing design supporting PCI Express x1, x2, x4, x8 or x16 slots. With both the low profile and standard profile brackets that works with both mini and standard size PCs
Comprehensive System Support\u2014 Supports Windows 2000/2003/2008; Windows Professional XP* SP3; Windows Vista* SP1; Windows 7/8/10/2008/ 2008 R2/ 2012/ 2012 R2; Linux* RHEL 4.6; Linux* Kernel version 2.6.24; Linux* Kernel version 2.4.36.2; RHEL* 5.1; SLES* 9 SP4; SLES* 10 SP1; FreeBSD* 7.0; DOS*; DOSODI*; SCO OpenServer 6/Unixware* 7.1.x; Novell Netware* 6.5; Xen*; FreeBSD* 5.x or later; ESX* 3.x* support (for VMware); (Does not support VMware ESXi 7.0 or above.)
Industry Leading Support\u2014 3-year warranty and free 24/7 technical support