So I spilt some tea on my mouse connection (Razor Naga Epic) and somehow the cable shorted itself but my logic board was fine. The USB port starting working again after a SMC and PRAM reset... Phew.
Nice! I just bought a regular Naga to replace my broken DeathAdder. I never really looked in to the Epic but what more does it have than the standard Naga?
The only difference is that it can become wireless... But honestly, I used it wired 95% of the time. And partially because the store didn't have the non epic ;)