... power consumption 4,For SD/MMC/RS-MMC card Name:USB2.0 SD Card Reader Specification:7.5*3.1*1 ... ;l Compliant with USB 1.1,USB1.0;l No external power requires,just powered by USB interface;l Fully plug ... /RS-MMC Cardl Easy to carry ,download and uploadl Standard USB2.0 interface,compatible with USB1.1,USB1.0l Direct to ... insert or pull in heat Best seller SD card reader, USB2.0 external card reader