... Scanner: 153.7g, Dock:331.5g, Scanner+Dock:456.2gSensor type CISResolution 300DPI(default), 600DPI, 900DPIScanner speed(without dock)A4 length ... : Windows xp/Win7/ Vista or aboveCPU:Pentium III or above RAM:At least 256MBCD ROM:4 x speed CD ROM or ... Manual ,Pouch auto feed portable scanner, own backlight, CIS Sensor type