, vga Frame rate: 30 f/s under 600 lux brightness ( 1.3m ) Brightness control: manual adjustment , auto w/b Magnification ratio: 25 x ~ 200x ( manual ) Power supply: dc 5v from usb port Interface: usb 2.0 Operation system: win xp/vista / win7 32 bit and 64 bit. System requirement: pentium computer with 700m hz & above , 1g hd space cd rom driver, 512mb ram , direct x vga card Cd disk: driver Fix stand: all view angle available fix stand Dimension: 112mm ( l ) x33 mm( r ) Weight: less than 98 g Package weight:325g
