plustek A350 enterprise scanner

Image Sensor CIS x 2 (Duplex Scanner)
Light Source LED
Optical Resolution 600 dpi
Hardware Resolution 600 x 600 dpi
Scan Modes Color: Input 48-bit, Output 24-bit
Grayscale: Input 16-bit, Output 8-bit
Black & White: 1-bit
ADF Capacity 50 sheets (70 g/m², 18 Lbs)
Note: Maximum ADF capacity varies, depending upon paper weight.
Scanning Speed 25 ppm/ 50 ipm (color/grayscale, 300 dpi, A4 Portrait)