1.All in one Card reader 2.USB specification Ver2.0 3.CE &RoHS 4.Professional Manufacturer of ... in 1 Memory Card Reader Features: Fully support USB 2.0 Support: SD, mini SD, ,micro sd card,MMC ... All in one USB card reader -High Speed USB2.0, Compliance with USB 1.1 -Full data transfer rate ... files between cards -USB bus power Supply, No external power supply required -Plug and play, high speed ...