Lenovo Go RF Wireless Office Optical Mouse in Grey 2,400 DPI Product colour___Blue. Silver 10 year Sandisk warranty 10 year Sandisk warranty 4 GHz Processor model i5 1240P Processor generation 12th gen Intel® Core™ i5 Processor family Intel® Core™ i5 Processor manufacturer Intel Memory Memory channels Dual channel Maximum internal memory 32 GB Memory slots 2x SO DIMM Memory form factor SO DIMM Internal memory type DDR4 SDRAM Internal memory 8 GB Storage Compatible memory cards MicroSD (TransFlash) Card reader integrated Yes Optical drive type No SSD interface PCI Express 4 4 GHz Number of scroll wheels 1 Number of programmable buttons 3 Programmable mouse buttons Yes Customizable movement resolution Yes Movement resolution 2400 DPI Buttons type Pressed buttons Buttons quantity 6 Scroll type Wheel Movement detection technology Optical Device interface RF Wireless Purpose Office Design Surface coloration Monochromatic Product colour Grey Vertical design Yes Ergonomic design Yes Form factor Right hand Power Battery type AA Number of batteries supported 1 Power source Batteries Operational conditions Operating relative humidity (H H) 20 95% Operating temperature (T T) 0 40 °C System requirements Windows operating systems supported Windows 10 Our hands were not designed to be flat on tables for 8 hours a day