Razer's Viper mouse uses optical switches to get that perfect headshot

No matter how great a gaming mouse is, there’s always going to be some sort delay from when you click a button, to when your computer registers it. Razer is hoping to shave that delay a bit with its latest mouse, the Viper ($80), which uses optical switches instead of mechanical ones. When you click the Viper’s left or right buttons, they trigger a shutter that crosses an infrared…
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