Plustek SmartOffice PS3140U. Maximum scan size: 216 x 5080 mm, Optical scanning resolution: 600 x 600 DPI, Input colour depth: 48 bit. Scanner type: ADF scanner, Product colour: Grey, White. Sensor type: Dual CIS, Daily duty cycle (max): 4000 pages, Light source: LED. Auto document feeder (ADF) input capacity: 100 sheets. Maximum ISO A-series paper size: A4, Scanning media types supported: Plain paper, Plastic Card, Card thickness (max): 1.2 mm