Seiko Instruments SLP-440. Maximum resolution: 300 x 300 DPI. Print technology: Direct thermal. Connectivity technology: Wired. Width: 117 mm, Depth: 160.9 mm, Height: 157.9 mm. Minimum system requirements: USB/RS232C serial, CD-ROM/DVD, Compatible operating systems: Windows 2000, XP, Windows 7 Mac OS X v10.2, Minimum hard disk space: 16 MB