PCI Express 4.0 X16 Male to PCI Express X16 Female Cable Length 250 mm PCI Express 4.0 X16 Male to PCI Express X16 Female Cable Length 250 mm OCPC XTender PCI-E 4.0 Premium Riser Cable is using ultra high flexibility material which allow you to flip the cable into different shape to fit your computer. Doubled transfer rate PCI-E 4.0 16GT\S. (PCI-E 3.0 8GT\S) Driverless installation Support PCI-E 4.0 hardware devices without debugging BIOS. High compatibility Compatible with PCI-E 4.0 equipment, compatible with PCI-E 3.0 equipment, compatible with server equipment.