Canon DR-2050C document scanner, 355.6 x 215.9 mm, 24 bit, Business card scanner, CMOS, RGB LED, 50 sheets Canon DR-2050C document scanner. Maximum scan size: 355.6 x 215.9 mm, Input colour depth: 24 bit. Scanner type: Business card scanner. Sensor type: CMOS, Light source: RGB LED. Auto document feeder (ADF) input capacity: 50 sheets. Standard interfaces: USB 2.0 https://www.pcmag.com/article2/0,2817,1891459,00.asp The Canon DR-2050C ($675 street) is an affordable document scanner designed for small offices and workgroups. It offers reasonably fast scans and impressively fast recognition for scanning and saving in searchable PDF format, but a few small shortcom... Extraordinary speed in its price class for scanning and recognizing text. Driver supports both ISIS and Twain to work with virtually any scan software. No document-management program or indexing program included. Unclear installation instructions. The Canon DR-2050C is the fastest scanner in its price class for scanning, recognizing text, and saving files in a searchable PDF format....