The Viper Mini is a smaller, more compact version of the original Viper. It measures 1.3 by 2.4 by 4.6 inches, compared to the 1.5 by 2.6 by 5 inches of the original Viper. It’s stubbier than the Viper, and you can feel it when you hold it.

This mouse is designed for claw and fingertip players. Its small size and physically smaller device make it easier to push the mouse and make precise adjustments with only your fingers, rather than your entire hand and arm. Those players prioritize closely spaced buttons and low weight over shape.

The Viper Mini mouse is a scaled-down version of the Viper and Viper Ultimate mice. It has the standard six-button layout, with two clicks, a scroll wheel, and a small DPI preset switch on top rather than underneath. The Viper Mini is a right-handed mouse, so there are two side macros on the left side but none on the right. It’s not as good as an ambidextrous mouse because it’s the worst of both worlds and isn’t worth the small amount of weight it saves, but it’s especially problematic because the Viper is an ambidextrous line. ..

The Viper Mini employs optical switches, which Razer claims will increase durability and allow click signals to travel faster by eliminating debounce delay. The Mini’s switches are rated to last 50 million clicks, which is good but significantly less than the Viper and Viper Ultimate’s 70 million clicks. The sensor on the Viper Mini is also a significant step down from the original. The proprietary optical sensor can track at up to 8,500dpi and maintain accuracy at speeds of up to 300 inches per second. This is a reduction from the original Viper’s 16,000dpi and 450ips. ..