Typhoon Mini Notebook Mouse. Device interface: USB, Movement detection technology: Optical, Movement resolution: 800 DPI. Operating temperature range (T-T): 0 - 40 °C. Minimum processor: Pentium III, Minimum RAM: 128 MB. Mouse dimensions (WxDxH): 38 x 72 x 27 mm, Mouse weight: 37.5 g. Certification: CE, FCC, RoHS