Speedlink Decus Respec Gaming Mouse (SLBKRD) - * Lighting in 7 selectable colours * 7 programmable buttons including dpi switch and rapid-fire. After a testing period of a few weeks, I can say with confidence the Speedlink Decus Gaming Mouse is a great little Gaming mouse. Sure it has. Introduction. Speedlink Decus Respec Gaming Mouse Review. Finding the right gaming mouse is not easy, as there are countless options on the market, but.