Asus Dual Type-A PCIe Card USB 3.1 Type-A Card 10Gbit/s data-transfer speeds - Twice as fast as USB 3.0.You will need the latest Intel chipsets (x99 / z170,etc) to support this transfer speeds.This DOES NOT work on AMF chipsets Fits in any PCIe x4, x8, x16 slot Even faster USB 3.1 transfers with included ASUS USB 3.1 Boost utility