About 3 month ago I've gotten a new SteelSeries Sensei mouse from my friend Farberio. After 2 month, the mouse began acting up weird. It would randomly shut down in the middle of a game. First, I thought there was a problem with the drivers, then after I re-installed them, but the problem wasn't resolved. Second thought was that it's USB port issues, but no, those things never break on its own. And as I was afraid of, turned out it was a cord (cable) problem. I found that there are many people have the same problem. The best recommendations were just to swap a cable from any other mice with the same wire configuration. Sounds weird I know. Anyway, I had no other mice, so I took the mouse a part... Ground wire was torn into many hair-wires. Soldering was not an option, because the ground wire wraps around the other 3 wires in the cord. A little bit of work, and I managed to attach broken wire, but ran into another problem. There is no extra room for a thick cable inside the mouse. Well I kinda solved that puzzle too, but now some buttons are too tight to press. As a conclusion, SS Sensei is a good mouse in general, but this issue down rates it quiet a bit. P.S. I'll buy a new mouse, maybe the same, once I have money.