The Razer Viper Ultimate is a gaming mouse that has a matte black finish and rubberized sides for a firm, comfortable grip. The only RGB lighting zone is the illuminated Razer symbol near the back of the mouse, making the Viper Ultimate a more understated product in terms of bling. The Viper Ultimate, like the Basilisk Ultimate, has a compartment on the bottom of the mouse that houses the USB Type-A dongle for connecting to your computer. When not in use, you can charge the mouse using the included RGB charging dock or the detachable MicroUSB to USB Type-A cable.

To make the Viper Ultimate a more comfortable mouse, some compromises were made. Unlike many other gaming mice, the CPI switch is located on the underside of the mouse rather than directly beneath the scroll wheel. While this prevents accidental clicks, it also means that on-the-fly CPI adjustment is not possible.

The Viper Ultimate gaming mouse is designed for users with smaller hands who prefer a claw grip. It has a small footprint and limited real estate to cling to, so the ring and pinky fingers naturally rest in a position that allows for far too many accidental clicks.

The Viper Ultimate mouse is incredibly light, making it easy to move around and correct. It’s also great for eSports pros who need a light mouse to move quickly and accurately.