Lenovo Go RF Wireless Office Optical Mouse in Grey 2,400 DPI Product colour___Blue. Silver 4 GHz Processor model i5 1240P 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 & take notes with built in stylus Our hands were not designed to be flat on tables for 8 hours a day The Lenovo Go Wireless Vertical Mouse goes beyond the norm and delivers an experience that replicates the natural form of a handshake with a 45° palm grip and revised finger positioning for optimal posture and productivity