This Single port 5Gbps PCIe network card adds one copper Ethernet port to your Server or Desktop computer and provides Multi-Gigabit Ethernet access to your network at five speeds: 5Gbps, 2.5bps, 1G, 100Mbps and 10Mbps The 5Gbase-T solution provides additional bandwidth using your existing ethernet infrastructure to help reduce the cost upgrades. The card enables you to connect to 5Gbase-T and NBASE-T equipment at network speeds of 10Mbps, 100Mbps, 1Gbps, 2.5Gbps and 5Gbps over your CAT5e (up to 100M depending on configuration) The Realtek RTL8126 chipset, compliant with IEEE 802.3az and IEEE 802.3u supports the PCIe 3.1 interface. It provides up to a 500% increase in data rate and requires no changes to existing cable infrastructure Supports IEEE 802.1Q VLAN tagging, and IEEE 802.3x Fully Duplex Flow Control Complies with for and Linux platforms Specifications Bus Type: PCI Express 3.1 (8 GT/s) Bus Width: x1 PCI Express, operable in x4, x8 and x16 slots Card Type: Standard Chipset ID: Realtek - RTL8126 Industry Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802., IEEE 802.3az, IEEE 802.3bz Interface: 1x RJ45 Power Consumption: Gbps - 1.8W Special Notes / Requirements: PCI Express enabled computer with an available PCI Express x1 slot Gen 2.0 or higher (x4, x8, x16) Software: 10, 11, Linux up to 6.4 Color: As Shown Material: PCB Package Contents: 1 x Single Port 5Gbps PCIe Network Card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.