What is the purpose of this button on my Logitech G903? : r/logitech
Amazon.com: Logitech G903 LIGHTSPEED Wireless Gaming Mouse, 12,000 DPI, RGB, Lightweight, 7 to 11 Programmable Buttons, Long Battery Life, Compatible with PC / Mac - Black (Renewed) : Video Games
Side Buttons Keys for Logitech G900 G903 Wireless Mouse G4 G5 G6 G7 | eBay