If the card doesn't work properly from the start, you may try out the following steps Step 1: de- and reattach the devices to be recognized, so the system can try another recognition search. : Augment with the optional power supply, so an automatic search can be retried. Step 3: Check the PCI-E socket on the main board for possible faults. Step 4: Try out another Pro, if available, to determine the card's general functionality Material: PC+metal colour: As shown Package Contents: 1 x Rapid Expansion Card Only the above package content, other products are not included. Note: Light reflection 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. Update your Computer to 7 ports USB3.0(2xType C+5xType A) Easily with PCI Express to USB3.0 Controller Adapter Card SuperSpeed USB 3.0 supports transfer rates of up to 5Gbps - The actual transmission speed is limited by the setting of the device connected. Backwards compatible for USB 2.0 and 1.1 devices; Compatibility: for /7/8/10/ Pro 10.8.2 Above With quick and easy installation, this USB 3.0 PCI express I/O Card offers a for connecting to and using USB 3.0 devices on your standard desktop PC. Enjoy copying videos, music, photos, data files between USB devices and the computer at blazing fast speeds.