Plustek eScan A280 Enterprise. Maximum scan size: 216 x 356 mm, Optical scanning resolution: 600 x 600 DPI, Scan speed (b/w, low res, A4): 20 sec/page. Scanner type: ADF scanner, Product colour: Black, White, Display: LED. Sensor type: Dual CIS, Daily duty cycle (max): 2000 pages, Scan to: E-mail, FTP, SMB, USB. Auto document feeder (ADF) input capacity: 50 sheets. Maximum ISO A-series paper size: A4, Auto Document Feeder (ADF) media weight: 40 - 157 g/m², Maximum scan area (ADF): 216 x 356 mm