【Intel controller】: The 10g single-port SFP+ network card is based on the original Intel 82599EN controller, which supports single-root I/O virtualization and improves server stability. PCI Express v2.0 (5.0GT/s)x4, compatible with x8,x16. | 【System Support】: Windows 7/8/8.1/10; Windows Server 2003 R2/2008 R2/2012 R2/2016 R2/2019 R2; Linux; Centos/RHEL 6/7; Ubuntu 14.x/15.x/16.x; UOS V20 or later ;Vmware ESX/Esxi 4/5/6, etc. | 【Technical Support】: PXE, iSCSI, FCoE, DPDK, Jumbo Frames. | 【Easy Installation】: Install the operating system with its driver CD or download it from the Intel official website. Includes low-profile and full-height stands to support standard and ultra-thin computers/servers. | 【Hassle-Free After Sales Service】:LR LINK providing 24/7 customer service,30 Days Free-returned,3 Year Free Warranty and Lifetime Technology Support.