Features: new and Compliant with PCI-Express specification version 2.0. for Comply with USB3.0 SuperSpeed specification version 1.0. for Comply with xHCI specification version 1.0. Main control chip: Renesas uPD720201+GL35XX chipset. The highest transmission rate is up to 5Gbps, which is much higher than USB2.0s 480Mb/s, up to 10 times. It is backward for USB2.0, USB1.1, and USB1.0. Transmission rate: 5000/480/12/1.5Mbps. USB power output: up to 5V 2A (increased current type). Built-in large 4PIN enhanced power-on interface. Support USB hot plug function. Support for Windows XP/2003/Vista/win7/win8/2003/10 and above systems, etc. Specifications: Material: metal Colour:black Note: Open the supporting CDs folder -/for nec/D720201-2 and double-click the .exe file inside to install it. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1PC x PCI-E Expansion Card