MDTC-A021 all in one card reader 1,5 slots: SD,TF/Micro SD,M2,MS,Mini SD ... 2,USB2.0/1.1 3,43 in 1 Name:MDTC-A021 (all in one card reader)Supports:USB2.0 and 1 ... SD/MS card readers.Supports:It has 5 slots and it Supports all kinds of memory cards:M2 Slot; M2Mini SD ... OS10.0 .or higher.StandardsFCC, CE and RoHSMaterialplasticColorall kinds of colors.Hot-swappable supported, plug and playUSB bus-powered, ...