BenchmarkReviews.com: Razer has made a good product better with the new DeathAdder 2013 gaming mouse, model RZ01-00840100-R3U1. Maintaining it's famous ergonomic design, Razer has upgraded the optical laser to a more sensitive one as well as added rubber side grips. Many versions of the DeathAdder are available and the budget-conscious consumer will surely contemplate whether or not the refinements are worth the price difference. The featured product is marketed as an essential ergonomic gaming mouse; there are no bells are whistles, no weight adjustment, no changeable lights, just a mouse designed to dominate. Since the 2013 version of the DeathAdder is quite similar to it's predecessors, this review may also serve as an evaluation of the general DeathAdder series. Read on as Benchmark reviews takes a close look at the raved-about Razer DeathAdder 2013 gaming mouse to see what all the hype is about.