material: metal100% brand new and high qualitySuper fast and high-capacity transfer solution, stable and reliableFully compatible with PCI Express Base Specification Revision 2.0Supports simultaneous operation of multiple USB 3.0, USB 2.0, and USB 1.1 devicesSupports 4 downstream ports for all speedsBuilt-in 4-pin power connector for receiving extra power supply from the systemSupports Windows 7 (32-bit/64-bit), Windows Vista (32-bit/64-bit), Windows XPApprox. Size: 11.8cm x 7cm x 1.8cm / 4.6" x 2.8" x 0.7"Package included:1 x PCI-E Express Card1 x CD DriverNote:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
