This dual-port 10 Gb PCIe network card offers a versatile & low-cost way to deploy 10 Gb E network connectivity. It adds two copper Ethernet ports to your server or desktop computer & provides Multi-Gigabit Ethernet access to your network at five speeds: 10G, 5G, 2.5G, 1G & 100 Mbps. Cost-Effective Multi-Gigabit Ethernet Solution The 10GBASE-T NIC provides additional bandwidth using your existing Ethernet infrastructure to help reduce the cost of cabling upgrades. The card enables you to connect to 10GBASE-T & NBASE-T equipment at network speeds of: 100 Mbps, 1 Gbps, 2.5 Gbps or 5 Gbps over your CAT5e cabling (up to 100 m) 10 Gbps over your CAT6 or better cabling (up to 100 m) Optimal Technology for Optimal Performance The network adapter card adds two Ethernet ports to your workstation through an x 8 PCIe 2.X (or higher) slot. It features 10GBASE-T technology, supporting advanced Multi-Gigabit systems, including Cisco campus switches & Aruba Networks access points. The NIC card also supports additional features including 9K Jumbo Frames, Autonegotiation, Auto-MDIX & 802.1q VLAN tagging. Energy Efficient Ethernet The dual Tehuti TN4010 + Marvell 88X3110 chipset, compliant with IEEE 802.3az, ensures peak operation & reduced power consumption. The decreased consumption minimizes the heat generated to avoid operating temperatures increasing within your server case.