SteelSeries APEX 7 Mechanical Switch Gaming Keyboard w/ OLED Smart DisplayCondition:* New surplus stock, in OEM packaging. As pictured. Additional Notes:* Top Material: Aircraft Grade Aluminum Alloy Frame* N-Key Roll Over: 104-Key* SteelSeries Switch Type: Blue Switches* Switch Actuation: 2 mm* Lifetime: 50 Million Keypresses* Anti-Ghosting: 100%* Illumination: Dynamic Per Key RGB Illumination* OS: Windows, Mac OS X, Xbox, and PlayStation. USB port required* Software: SteelSeries Engine 3.15+ (coming soon) for Windows (7 or newer) and Mac OSX (10.11 or newer)SteelSeries APEX 7