All in one USB card reader Features: Compound Design, Multiple In One Cardreader for PC and Mac High qualitymetal Shell Mould,Slinky and fashion,ConvenienceToCarry SupportHotPlug Easy ToUse USB 2.0 Version specification,SupportUSB 1.1 Version Specification High transmission Speed,MayReach To 480 Mb/s Support SDHC, miniSDHC (SD 2.0) Easy Plug& Play Installation DeviceSupportwindows 98/ME/2000/XP/Vista/ 7Specifications: Power : -No External Power Needed,SupportHot Plug - DC 5V (USB port) - Max Electric Current:500mA Size :61 x50 x 12 mm (L*W*H) Net Weight: 32g Power Input: AC 110V 240V DC 5V 2A (Make sure 2A) Brief Advantage of our factory: 1) More than 10 years experience in computer accessories manufacturing and exporting; 2) Upgraded the quality system based on ISO9001:2000 for production. 3) Well equipped with complete facilities and 200 skilled employees. 4) Samples time in 2-3 days, orders time in 15-20 days