Additional Details ------------------------------ Product description: Razer mechanical switch features 6,400 DPI optical sensors for fast and accurate swipes. 5 individually programmable Hyperesponse buttons offer advanced operability to give you the edge in competition. Right Handed Ergonomic Design and Razer Synapse 3 Compatible The award-winning Razer mechanical switch has survived 10 million clicks, and has earned a long life and reliability. Size (approximate): Length 5.0 inches (127.0 mm) x Width 2.9 inches (73.0 mm) x Height 1.7 inches (43.0 mm)