Description for 7-in-1: Interface: Micro/usb/usb2.0 * 2/type-3.1 Memory card slot: SD card slot TF card slot Shell material: aluminum alloy Color: grey Weight: 30g Specifications: 1.Multi-function designUSB 2.0 card reader set the USB port, Micro USB port, lighting port and Type-C port in one, making this card reader compatible with all tablets and smartphones that support OTG function.! 2.Multi disc transmissionBoth USB C port and USB 2.0 port can support fast data transmission up to 480Mbps. 3.Plug and play. Reading USB flash disk/memory card anytime and anywhere, watch various high-definition movies at any time 4.Durable & compact. The memory card reader is made of durable ABS and premium chips, making it safe and stable. The slimline design is easy to store in your camera bag or pocket. Specifications for 3-in-1: Material: ABS Optional Color: black, white(As Pictures Show) Interface: USB TYPE-C micro usb Data interface: USB2.0 Card reader interface: TF card slot*1/SD card slot*1/OTG interface