The new Razer Abyssus is a new no-frills gaming mouse that sits just above the Salmosa in Razer’s range. The Razer Abyssus makes do with just two buttons and a clickable scrollwheel. Under the hood is the same 3.5G 3500dpi infrared sensor that’s just been put into the Deathadder, and … well, that’s about it. There are two hardware...