What do the 'G' keys do on gaming keyboards? - Quora
Unlock the Power of Macros with These Gaming Keyboards
Logitech G815 LIGHTSYNC Mechanical RGB gaming keyboard with flat linear GL key switch, 5 programmable G keys, USB loop, special multimedia controls: Amazon.de: PC & Video Games
Logitech G613 LIGHTSPEED Full-size Wireless Mechanical Romer-G Tactile Switch Gaming Keyboard with 6 Programmable G-Keys Black 920-008386 - Best Buy
Programming The G-keys On The Corsair Vengeance K-95 Keyboard - YouTube
Logitech G Gaming-Tastatur »G915 LIGHTSPEED Wireless RGB«, (USB-Anschluss-Ziffernblock-Multimedia-Tasten) | BAUR
Logitech's $90 Mechanical Keyboard touts RGB lighting + 9 macro keys ($30 off), more from $44