Main Features and Specifications: 1) Card reader & USB hub Combo 2) With 3 ports of USB hub (USB 1.1 or 2.0 for choice) 3) 23-in-1, can support up to 23 kinds of memory card 4) USB 2.0 card reader max. transmission: 480MBpS 5) LED light indicate when card reader and hubs at work 6) Support outside DC 15V power supply 7) More colors shell for choice 8) Accessories: USB cable, CD drive