Razer has introduced its lightest gaming mouse ever with the Viper Mini Signature Edition. Thanks to the use of a magnesium alloy for the exoskeleton, the weight of this wireless model is reduced to 49 grams, or 9 grams less than the Viper V2 Pro. The flagship comes with a hefty price tag: the mouse has a suggested retail price of 320 euros. The magnesium chassis must be stronger than plastic and at the same time lighter than titanium. For this amount you get high-end co…