SD card reader 1,USB 2.0 interface 2,plug and play 3,Lower power consumption 4,For SD/MMC/RS-MMC card Name:USB2.0 SD Card Reader Specification:7.5*3.1*1.1cmMaterial:plasticN.W :12g/pcFeaturesl Memory Card Reader;l USB 2.0 interface, transfer rate up to 480 Mbps;l Compliant with USB 1.1,USB1.0;l No external power requires,just powered by USB interface;l Fully plug & play and Hot Swappingsupport;l ...