NETWORK ADAPTER FOR PC: This 10 GbE capable PCIe network adapter card provides high-speed data transfer rates for desktops/servers leveraging an existing Cat5e, Cat6, or Cat6a cabling infrastructure SPECIFICATIONS: Multiple Speeds NIC 10/5/2.5/1Gbps and 100/10Mbps - 10GBASE-T and NBASE-T - 1x RJ45 Port - PCIe 3.0 x2 - Marvell AQC113CS - 16K Jumbo Frame - VLAN - PXE Boot - EEE - Full-Height and Low-Profile Brackets Included COMPATIBILITY: The network card for PC is compatible with Windows, Windows Server, and Linux - The variable speed options and included low profile bracket widen the compatibility of the PCIe network card with current and legacy devices MULTI-GIGABIT CONNECTIVITY: The network interface card auto negotiates speed and supports 2.5/5 Gbps network speeds on Cat5e cabling, and 10 Gbps on Cat6/6a - The Ethernet network card supports IP/TCP/UDP checksum offload, secure boot, PTP, and AVB THE IT PRO'S CHOICE: Designed and built for IT Professionals, this 10Gb network card is backed for two years, including free lifetime 24/5 multi-lingual technical assistance