Plustek OpticFilm 7400. Maximum scan size: 36.8 x 25.4 mm, Sensor type: CCD, Input colour depth: 48 bit. Standard interfaces: USB 2.0. Width: 120 mm, Depth: 272 mm, Height: 119 mm. Power supply type: AC/USB. Minimum hard disk space: 800 MB, Minimum RAM: 512 MB, Minimum processor: Pentium IV 2.0 GHz