Epson ES-400 II Duplex Desktop Document Scanner Optical Resolution: 600 dpi, Scan Speed: 35 ppm / 70 ipm, Minimum Scan Size: 2 x 2", Maximum Scan Size: 8.5 x 240", 50-Sheet Duplexing ADF, USB 3.0 Connectivity SCANNERS-Flatbed & Document Scanners