1、WIDELY COMPATIBLE: PCI‑Ex8 slot, compatible with X8 and X16 PCI‑E slots at the same time, support high performance, low processor occupancy PCI‑E data bus 2、MAIN CONTROL CHIP: For Intel main control chip is adopted, which provides a reliable guarantee for the high quality, high stability and high compatibility of the network card 3、AUTOMATIC DETECTION: Can automatically detect the full duplex/half duplex mode. Support ALAN network convergence function 4、STABLE and RELIABLE: The 10 Gigabit Ethernet controller has high performance, high reliability, and low CPU usage. At the same time, it is applicable to various desktop computers, industrial computers and servers in the field 5、SUPPORT SYSTEM: For Win Server 2012 R2, for Win Server 2012 R2 Core, for Win Server 2012, for Win Server 2012 Core, for Win Server 2008 R2 Core, for Linux Stable Kernel Version 2.6.32 and other systems Item Type:Network Card Material: Printed Circuit Board Chip Model: For Intel XL710BM1 Network Cable Interface Type: 1 x QSFP Interface Transmission Medium Type: 40g Optical Fiber Slot Interface Type: PCI EXpress3.0(8GT/s) Bus Speed and Slot Width: For X8, Compatible with for X8, for X16 Transmission Rate: 40G IEEE Network Standard: IEEE802.3 Applicable Network Type: 40,000 Gigabit Ethernet Application Field: Server Led Indicator: 2 LED Indicators Full Duplex/Half Duplex: Full Duplex/Half Duplex Adaptive Support Operating System: For Win Server 2012 R2, for Win Server 2012 R2 Core, for Win Server 2012, for Win Server 2012 Core, for Win Server 2008 R2, for Win Server 2008 R2 Core, for Linux Stable Kernel Version 2.6.32, for Linux Stable Kernel Version 3x,  for Linux Rhel 6.5, for Linux Rhel7.0, for Linux Sles 11 Sp3, for Linux Sles 12 Freebsd9, for Linux Sles 12 Freebsd10. For VMware ESXi 5. 1(Limited Functionality), for VMWare esXi 5.5 1 x Network Card 1 x CD Disc 1 x Short Baffle