- Power supply via USB. No external power supply required. - USB 1.0/2.0 Support - Transfer rate up to 12Mbps (USB 1.1) & 480Mbps (USB 2.0) - Comes with LED indicator for power status and read/writeprogress - Cards supported: SD/mini SD/MMC/RS-MMC/MMC 4.0/RS-MMC 4.0/MS/MS Pro/MS DUO/MS Pro DUO/MMC Micro/MicroSD/M2(MS Micro)