Genius G-Pen 340. Connectivity technology: Wired, Device interface: USB, Working area: 7.62 x 10.16 mm. Minimum RAM: 64 MB, Minimum hard disk space: 4 MB. Minimum system requirements: Pentium USB CD/DVD-ROM, Compatible operating systems: Windows 2003/XP/Me/2000/98SE Mac OS 9.X, 10.2.6