GAMDIAS Apollo GMS 5101 Optical Gaming Mouse Palm Extension, 3 Programmable Buttons, 3200 DPI 3200 DPI pixel perfect accuracy Customizable luminance lighting 64k onboard memory stores 6 profiles, memory and achievements Military Grade USB Cable braided cable with gold-plated USB connector Unique consecutive attack key allows you to choose between 5 speeds of consecutive attacking 5 Smart Keys; programmable for strategic assignments of macros, profiles, keyboard keys, media controls, windows functions Multi-Grip functionality Sensitivity switch allows you to have 5 user-defined sensitivity settings