USB keyboard support storage disk (SD, TF, Flash disk), ... Dia)76*435mm MF-01 keyboard with speaker is used for USB keyboard ,support storage disk(SD,TF, Flashdisk),support computer ... ), output power: RNS 4W (2W + 2W). Power input: USB power supply (if you use other power supplies, it should ... Blue, black, sliver greySpecification:(Dia)76*435mm Packing: color-box, Size:32*32*47cm,QTY:9PCS,GW:14.5KNW:12KG ...