Sandisk MobileMate - Card reader (microSDHC UHS-I, microSDXC UHS-I) - USB 3.0. The MobileMate USB 3.0 microSD card reader is the easy way to quickly transfer content from your camera or drone's memory card. This compact and durable reader requires no downloads or additional software and is compatible with USB 3.0 and backwards-compatible with USB 2.0. And, with transfer speeds of up to 170MB/s, you can move what needs moving and then get going again.