Add three USB 3.0 ports and a Gigabit Ethernet port to your desktop computer through a PCI Express expansion slot. By combining three USB 3.0 ports and one RJ45 port onto a single card, you only need a single PCIe slot for installation.The super Speed USB 3.1 Gen1 standard, operating at 5 Gbps full-duplex mode, is 10 times faster than USB 2.0 High-Speed standard. Support for advanced features such as jumbo frames and VLAN tagging means you can optimize network traffic as needed. The 10/100/1000M Gigabit Ethernet port is Energy Efficient Ethernet (EEE) base on digital signal processing (DSP) technology with low dissipation.