eBay

Brand new open box, never used: in original sealed plastic enclosure, without box or driver CD (drivers can be downloaded, if needed, online). Includes both full-size and low-profile card brackets to fit your form factor!

【1-Pack】10Gb PCI-E NIC Network Card, Dual SFP+ Port, with Intel 82599EN Controller, PCI Express Ethernet LAN Adapter Support Windows Server/Linux/VMware, Compare to Intel X520-DA2 (Intel E10G42BTDA)

Add a Dual SFP+ network connectivity card to your desktop or server through PCI Express with speeds up to 10G per SFP+ port.