Plustek OpticFilm 7600i AI. Maximum scan size: 36.8 x 25.4 mm, Scanner type: Sheet-fed, Optical scanning resolution: 7200 x 7200 DPI. Standard interfaces: USB 2.0. Weight: 1600 g. Certification: CE, FCC, UL/cUL, TUV. Minimum system requirements: CD-ROM USB 2.0, Minimum hard disk space: 500 MB, Minimum RAM: 512 MB