TRENDnet 2.5GBase-T PCIe Network Adapter, TEG-25GECTX, Converts a PCle Slot into a 2.5G Ethernet Port, 802.1Q VLAN Tagging, Standard & Low-Profile Brackets Included, Windows Support, 9KB Jumbo Frames

2.5GB ETHERNET PORT: 2.5G network adapter supports three speeds: 2.5Gbps, 1Gbps, and 100Mbps over standard Cat5e cables at distances up to 100m (328 ft.) PCIe to 2.5G: This 2.5GBASE-T PCIe Network Adapter converts a PCIe slot into a 2.5G Ethernet Port COMPATIBLE OPERATING SYSTEMS: This network adapter is compatible with Windows, Windows Server operating system. JUMBO FRAME: Sends larger packets, or jumbo frames (up to 9KB), for increased performance. Includes standard and low-profile brackets IEEE 802.3ab and 802.3bz compliant