Logitech G on Twitter: "In 2014, we launched the G502 Proteus Core, which became the first in a line that grew to be the best selling gaming mouse on the market. #UltimateCountdown
The Logitech Proteus Core G502 Tuneable Gaming Mouse: Thoughtful, Responsive And Optically Solid - Stereo Embers Magazine Stereo Embers Magazine
Logitech G502 Proteus Core Gaming Mouse and G240 Cloth Gaming Mouse Pad Review - Page 2 of 5 - Legit Reviews