This card is a high-performance, 2 ports, 6-speed, 10 Gigabit Adapter designed for low-power, low-cost connectivity required by application servers, high-end workstations and personal computers. 

It delivers up to 10 Gbps network connectivity speed through 100m of Cat 6a cabling. It also supports up to 5 Gbps network connectivity speed on legacy Cat 5e or Cat 6 cabling

• Support 6-Speed 10Gb/5Gb/2.5Gb/1Gb/100Mb/10Mb auto- negotiation 
• PCI Express 3.0 x4 
• Compliant with IEEE 802.3bz, 802.3an 
• Energy Efficient Ethernet (EEE) 
• Up to 16K Jumbo Frames 
• IP, TCP, UDP checksum offload
• Support WOL