... 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 1.1,transfers ... card readers.Supports:It has 5 slots and it Supports all kinds of memory cards:M2 Slot; M2Mini ... and playUSB bus-powered, No external power supply required ,Low power consumption, suitable for desktop and notebook MDTC-A021 all in one ...