This Single port 10Gbps PCIe network card adds one copper Ethernet port to your Server or Desktop computer and provides Multi-Gigabit Ethernet access to your network at six speeds: 10Gbps, 5Gbps, 2.5bps, 1G, 100Mbps and 10Mbps. With a PCI Express Gen 4 x1, adapter easily handles the 10 GbE line-rate performance. The TXA401 is compliant with the NBASE-T specification and the IEEE 802.3an standard to perform all functions required to implement 10GBASE-T/5GBASE-T/2.5GBASE-T/1000BASE-T/100BASE TX/10BASE-Te transmission over 100 meters of twisted pair cabling. The for Realtek RTL8127 chipset, compliant with IEEE 802.3az and IEEE 802.3an supports the PCIe 4.0 interface. Color:Blue Material:PCB Package Contents: 1 * 10G PCI-E To RJ45 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.