The RipJaws MX780 features an 8,200dpi laser sensor with a 1,000Hz ... Purchasing Guide The G.Skill RipJaws MX780 Gaming Mouse has an MSRP of $59.99, but like a lot of PC hardware it can generally ...

They work by emitting light from an LED or laser, and a CMOS sensor detects the light reflections as the mouse is moved. Early optical mice required a special mouse pad, but modern devices can be ...