Benchmark Reviews: Razer debuted the original Lachesis 4000 dpi gaming mouse back in 2007. For its day, the Lachesis was one of the most sensitive mice you could buy, although by today's standards that 4000 dpi mark isn't such a big deal. Razer have updated the Lachesis V2 gaming mouse with a new design and new sensor, the 3.5G laser sensor in this new version supports up to 5600 dpi and the Lachesis has customizable lighting for both the wheel and the logo, which can be set to individual colors dependant on your preference. The Lachesis gaming mouse also features nine programmable buttons with 1000Hz ultrapolling for a 1ms response time. Benchmark Reviews will now put the Razer Lachesis V2 5600 dpi gaming mouse through its paces and report back with our findings for you.