Upgrade your network with a 10G PCIE X8 network adapter that features the 82599EN chipset for top performance This single-port X520-DA1 adapter enables stable 10Gbps connections over fiber optic Ethernet, ideal for data-intensive tasks and server applications Interface: PCI-E X8, compatible with a wide range of systems Transfer rate: 10Gbps for fast and efficient data transfer, 10G fiber optic Ethernet, ideal for high-speed Internet and intranet connections System compatibility: fully compatible with Windows 7, 8 and 10 Type: PCI-E X8 Chipset: For Intel 82599EN Transmission Rate: 10G Network Type: 10-Gigabit Fiber Ethernet (The product appearance and printed words may vary depending on the batch, but this does not affect use) Color: As Shown Material: PCB Package Contents: 1 * Network Adapter kit