Shane published a Razer Lachesis Review already last year. Today our review partner Digital Trends also tesed the 4000dpi sensitive mouse.

Quote from the review: "The Lachesis is the world’s largest pit viper snake, and the word means “Bringer of Silent Death” in Latin, according to Razer. In reality it brings comfortable mousing to both left-and-right handed gamers, but that’s a decidedly less sexy tagline.
The biggest selling point of the Lachesis is that it offers 4000dpi sensitivity, which is the highest so far in the dpi arms race."
Read the full Razer Lachesis Review.