Equipped with original Intel 82599ES controller chip which supports I/O virtualization and make the servers more stable. Compatible with Windows Server 2003/ 2008/ 2012, Windows7/8/10/Visa, Linux, VMware ESX. Dual SFP+ ports let you connect to 10 Gigabit SFP+ module/DAC/AOC for meeting the demands of data center environments. PCI-E X8 Lane is suitable for both PCI-E X8 and PCI-E X16 slots. Driver CD is included natively, you also can download it from Intel website. With profile bracket and additional low profile bracket that makes it easy to install the card in a small form factor/low profile computer case/server. What You Get: 10Gtek X520-DA2 10GbE PCI-E X8 Network Card x1, Driver CD x1, Low-profile Bracket x1. Backed by 10Gtek 30 Days Free-returned, 1 Year Free Warranty and Lifetime Technology Support.