... Magnification Range 50X ~ 500X (Manually)Power Supply USB Port ( 5V DC )USB 2.0 & USB 1.1 CompatibleOperation System Windows XP, Vista, Win ... other colors.Product Outlook & Standard parts Digital Microscope (1pcs)2. USB 2.0 cable 3. Metal fixed Stand (1pcs)4. CD ... ,WIN7 Pentium 1G, Celeron, AMD 1G &above, 128MB Memory, 150MB Hard Disc memory space,16-bit &above VGA ,CD-ROM, USB2.0 ...