Plustek OpticSlim 2400+, 8.5 x 11.7" (216 x 297 mm), 1200 x 2400 DPI, 48 bit, Flatbed scanner, CIS, A4 Plustek OpticSlim 2400+. Maximum scan size: 8.5 x 11.7" (216 x 297 mm), Optical scanning resolution: 1200 x 2400 DPI, Input color depth: 48 bit. Scanner type: Flatbed scanner. Sensor type: CIS. Maximum ISO A-series paper size: A4, ISO A-series sizes (A0...A9): A4. Standard interfaces: USB 2.0