Razer Viper 8KHz Ultralight Ambidextrous Wired Gaming Mouse: Fastest Gaming Switches - 20K DPI Optical Sensor - Chroma RGB Lighting - 8 Programmable Buttons - 8000Hz HyperPolling - ESL Edition

Razer 8000Hz HyperPolling Technology: With a true 8000Hz polling rate, the mouse can communicate its position and clicks to your PC at up to 8000 times a second-for near-zero input latency and a level of speed you’ve yet to experience Razer Focus+ 20K Optical Sensor: With new intelligent functions such as motion sync and asymmetric cut-off, our sensor flawlessly tracks your movement with zero spinouts, allowing for crisp response and pixel-precise accuracy 2nd-Gen Razer Optical Mouse Switch: The improved polling rate maximizes the switches’ potential so that they register up to 8x faster -providing quick, clean execution for up to 70 million clicks with zero unintended double-clicking 71g Lightweight Design: Its agile form factor is extremely easy to handle and comes at no compromise to its build strength, allowing for deft control that feels like a natural extension of your hand Razer Speedflex Cable: Woven for greater flexibility and designed to produce minimal drag, you’ll be able to perform quicker, smoother swipes for tighter mouse control Advanced On-board Memory: Be ready to compete anywhere with up to 5 stored profiles that give you access to optimal keybind layouts, macros and double the inputs via the Razer Hypershift function Officially licensed ESL Gaming Design: One of the world's largest esports companies that leads the industry across the most popular video games with numerous online and offline competitions