This 10G capable PCIe network adapter card enables high-speed data rates for desktops/servers leveraging existing Cat5e/6/6a cabling - Six-Speed NIC 10G/5G/2.5G/1G/100M/10M, 1x RJ45, PCIe 3.0 x2 Marvell AQC113CS 16K Jumbo VLAN PXE Boot AVB and PTP - The 10Gb network adapter card is supported by Windows/Windows Server/Linux. The six speed options and included low-profile bracket widen the compatibility of the network interface card with current/legacy devices