SODIAL 3 x USB 2.0 Micro SD Card Adapter Reader Writer SDHC MMC Micro Sd 2528c USB card reader Capacity: read cards with capacity: 1GB, 2GB, 4GB, 8GB and 16GB For USB version 2.0. Also supports USB version 1.1 High speed up to 480 Mbps transmission Dimensions: 34 mm x 18 mm x 12 mm