Type: USB 3.0 with SD/MMC Interface: USB 3.0 (5.0 Gbps) Support: SD/SDHS/MMC/RS-MMS/Mini SD/Micro SD/T-Flash (W/ Adapter) Connectivity: Hot Plug and Play Dimension: 2 ½” (63mm) L x 15/16” (24mm) W x 3/8” (8mm) H Weight: 0.10 lbs