Features:2 Type-A and 1 Type-C ports expansion: hot plug and play support.supports data rate up to 5Gb/s, Comply with PCI Express X1 X4 X8 X16 slotCompatibility: Support Windows XP / Vista / 7 / 8 /10 system (32/64). Don't support MAC OS system. suitable for all motherboard with PCI-E busEasy to Install: With quick and easy installation, all the USB 3.0 PCI-E cards requires are an external connection to the power supply of the PC.Backwards Compatible: Works great with USB 3.0 & 2.0 devicesColour: BlackMaterial: metal + pcPackage Contents:2 x riser cardOnly the above package content, other products are not included.Note: 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.