USB Digital Microscope Item No.300X-6MOQ(pcs) 20Unit Price (RMB)Size:112mm( ... ~ 300X ( Manual )Power SupplyUSB Port ( 5V DC )InterfaceUSB 2.0 & USB 1.1 CompetiableOperation SystemWin XP , Vista , Win 7 32 bit ... programDimension112 mm ( L ) X 33 mm ( R )Accesseries1.5M USB cable, CD disk,Metal Fix Stand, color box, simple user manual USB Digital Microscope