Fast, precise, deadly Say goodbye to response delay with the Razer Viper 8K Optical Gaming Mouse. The 8000 Hz polling rate means this deadly serpent communicates with your PC 8000 times each second, effectively getting rid of response time in your clicks and moves. Complemented by a 20K DPI sensor and optical switches, you get extremely fast and precise gaming weapon. To keep up on the outside too, the Viper 8K has a super-flexible braided cable and Teflon feet. Tweak and adjust Using the Razer Synapse software you’ll get everything mapped and tweaked in no time. You can even adjust the lift-off distance for absolute precision. And of course, the Viper 8K is ready to sync its colours via the Razer Chroma RGB. Plus, there’s onboard memory too, so your settings stay in the mouse, so there’s no need to remap.