Trust SCANNER TRUST 240TH. Maximum scan size: 210 x 297 mm. Standard interfaces: USB. Bundled software: Ulead PhotoExpress 4.0; Fine reader OCR. Minimum system requirements: •Intel Pentium 233 MMX CPU •USB port •32 MB of system memory •250 MB free hard disk space , Compatible operating systems: Microsoft Windows 98, ME, 2000, XP