Cooler Master CM STORM ALCOR
Mouse / optical / cable / USB / General / 4000DPI / 7 buttons / DPI change / gold-plated USB connector / LED Tuning Products / Mouse Size: 124.8 X 60.4 X 40.2mm / Omron switch, use / alps encoder wheel used / 4 steps DPI adjustment button / Avago 3090 optical sensor / 128K on-board memory / 1ms polling rate