USB 3.0 SD Card Reader, Rocketek 4 Slots Memory Card Reader with a 13CM Flexible USB Cord for SDXC/SDHC/UHS-I SD Cards, Micro SD Cards, MMC memory cards - Simultaneously Read 2 Different Memory Cards 4 slots - Simultaneously Read 2 Different Memory Cards: SD/MMC*2 + Micro SD/T-flash*2, it is very convenient to transfer data between SD cards or Micro SD(T-flash) cards directly. With a 13CM flexible USB cord to enable connections in tight spots next to larger USB plugs. Plug and play; Hot swapping; USB power(no external power or battery); Supper Speed USB 3.0 and Backward Compatible with 2.0/1.1. Auto detect memory card; Support SDXC up to 2TB, SD V3.0, UHS-I standard, latest Micro SDXC and MMC 4.4. LED indicator for working status, keep on when SD Reader connected, flashing when transfering data. 18-month manufacturer's warranty.