Epson WorkForce DS-520 Sheet-Fed Color Document Scanner for PC & MAC, Auto Document Feeder (ADF) & Duplex (B11B234201) Fast scan speeds - up to 30 ppm/60 ipm; scans both sides in just one pass Compatible w/ popular third-party doc. mgmt. software - TWAIN & ISIS drivers Reliable performance - 3 sets of rollers for dynamic skew correction, & more