I got a mouse for free with my case; the case has no lighting but the mouse just flashes random colors for two seconds each. There is no way to stop this. I went so far as to call the 'manufacturer' - they got it from some generic subcontractor and didn't know if there was any way to stop it flashing. I meant to get another mouse at some point, but I just got used to it. Now I watch movies and somehow ignore the bright random color LEDs blaring by the corner of the monitor, until something reminds me of this fucking thing. I almost love how awful it is.