This adapter converts a mini PCIe slot to a USB 3.0 interface, backward compatible with USB 2.0. Expand your standard USB interface via the mini PCIe port to connect USB 3.0 devices. The expanded USB port can connect to USB flash drives, USB Bluetooth adapters, WIFI adapters, etc. Size: 52x30x5.2 mm Power Supply Voltage: Output 5V/1A Precautions: The laptop's MINI PCI-E standard includes USB signal and 3.3V power supply. This product leads the USB signal to the USB socket and boosts 3.3V to 5V/1A to power the USB device. Please consider the above working principle. Since the USB signal is output from the computer, some computers have poor shielding or no signal output at all, rendering the card unusable, which is not a problem with the card itself. Color: green Material: metal Package Contents: 1 x mini PCI-e to USB3.0 adapter card Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3 cm.