Top Material-Aircraft Grade Aluminum Alloy Frame, N-Key Roll Over-84-Key, AntiGhosting-100%, Illumination-Dynamic Per Key RGB Illumination, Weight-1.7 lbs,
Height-40.44 mm, Width-454 mm, Depth-355.44 mm ,Type & Name-SteelSeries QX2
Mechanical RGB Switch, Switch Actuation-2 mm, Total Travel-4 mm, Force-45cN,
Lifetime-50 Million Keypresses, OS-Windows and Mac OS X. USB port required,
Software-SteelSeries Engine 3.15+ (coming soon) for Windows (7 or newer) and
Mac OS X (10.11 or newer).