10Gb PCI-E NIC Network Card, Single SFP+ Port, with Intel 82599EN Controller, PCI Express Ethernet LAN Adapter Support Windows Server/Linux/VMware, Compare to Intel X520-DA1(Intel E10G42BTDA)

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Equipped with original Intel 82599EN controller which supports I/O virtualization and make the servers more stable.
Compatible with Windows Server 2008/ 2012, Windows7/8/10/Visa, Linux, VMware ESX.
Single 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. 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 10GbE PCI-E X8 Network Card X520-10G-1S-X8 (Compare to Intel X520-DA1) x1, Driver CD x1, 2.62 inch Low-profile Bracket x1. Backed by 10Gtek 30 Days Free-returned, 1 Year Free Warranty and Lifetime Technology Support.
PS: Due to the particularity in QNAP/Synology system, for QNAP/Synology user, please contact our customer service before purchase.