Syba Dual Port Gigabit Ethernet PCI Express 2.1 PCI-E x1 Network Adapter Card (NIC) 10/100/1000 Mbps Card with Realtek RTL8111 Chipset, 2 Port (SD-PEX24041)

PCIe x1 Lane with 2 5Gbs full duplex channel Backwards compatible to 10/100 BaseT networking 10/100/1000Mbps data rate auto negotiation operation Fully compliant with IEEE 802 3 802 3u 802 3ab Supports full duplex control PCIe x1 Lane with 2.5G bs full duplex channel Backwards compatible to 10/100 BaseT networking 10/100/1000Mbps data rate auto negotiation operation Fully compliant with IEEE 802.3, 802.3 u, 802.3 ab Supports full duplex control Supports IEEE 802.1P Layer 2 Priority Encoding Supports IEEE 802.1Q VLAN tagging Crossover Detection and Auto Correction operation