Used, Tested, and Works! Mechanical Gaming Keyboard has Romer-G key switches that have faster resgister presses than normal switches. Is portable and smaller size design good for portability.
Features fully customizeable RGB Keys with G HUB Logitech Software. Missing the Arx Control dock and one keyboard leg. There are some issues with some keys producing incorrect colors, not noticeable with certain color transitions.  

Form Factor: 80% Tenkeyless
RGB? Yes, RGB
Height/Width/Length (in) 1.40" x 15.40" x 7.30" 
Cable Length: 5 Feet
Special Keys: Game Mode Switch