Plustek OpticSlim 2400+. Maximum scan size: 216 x 297 mm, Scanner type: Flatbed, Sensor type: CCD. Standard interfaces: USB 2.0. Weight: 1.4 kg. Certification: CE, FCC. Minimum hard disk space: 600 MB, Minimum RAM: 64 MB, Compatible operating systems: Microsoft Windows XP, 2000, Vista