Connectland CL-U2CR-450 USB 2.0 Memory Card Reader with 4x Slots, M2 Supported, Rotary Cover (Silver) Compliant with USB specification Revision 2.0 & 1.1. Easy to use, compact, streamline design on its shape and lightweight. Support: MS PRO DUO,SD, MIN, HS MMC, HS RS MMC, RS.