Plustek SmartOffice PS456U. Maximum scan size: 244 x 5080 mm, Optical scanning resolution: 600 x 600 DPI, Input colour depth: 48 bit. Scanner type: ADF scanner, Product colour: White. Sensor type: Dual CCD, Daily duty cycle (max): 8000 pages, Light source: LED. Auto document feeder (ADF) input capacity: 100 sheets. Maximum ISO A-series paper size: A4, Scanning media types supported: Business Card, ISO A-series sizes (A0...A9): A4