Features: new and high quality Faster transfer speed, up to 10gbps, uploaded photos and videos in seconds. USBC 3.2 card reader with 3 card slot for reading and transferring data. Plug-and-Play simplicities, no need external power supply. All-aluminum enclosure provides better protection and maximizes cooling performance. With auxiliary power supply interface, it can prevent the notebook interface from being short of power supply when three card slot transmit data at the same-time, that is, it can be powered by external power supply. Specifications: Material:Aluminium Transmission speed:10Gbps Size:Approx.92x74x14mm/3.62x2.91x0.55inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Card Reader