Product features high speed the usb 31 interface combined with an ssd provide for fast transfer rates design sophisticated and very compact design bus powered no additional power input required product description buffalo ministation ssd pmu3 solid state drive 120 gb usb 31 gen1 type solid state drive external portable capacity 120 gb nand flash memory type triple level cell tlc interface usb 31 gen1 data transfer rate 50 gbps usb 30