Razer Black Windows Ultimate Full Mechanical Keys for Superior Tactility and Faster Response On-The-Fly Macro Recording & Profiles allow Effortless Configuration Individually Backlit Keys With 5 Levels of Lighting :: Technical Specifications * Full mechanical keys with 50g actuation force * Individually backlit keys with 5 levels of lighting * 1000Hz Ultrapolling / 1ms response time * Programmable keys with on-the-fly macro recording * Gaming mode option for deactivation of the Windows key * 10 customizable software profiles with on-the-fly switching * 5 additional macro keys * Gaming optimized key matrix for minimized ghosting * Multi-Media Controls * Braided cable * Audio-Out / Mic-In Jacks * USB-Passthrough * Approx. size in mm: 475(L) x 171(W) x 30(H) * Weight: 1.5kg :: System Requirements * PC with USB port * Windows® 7 / Windows Vista® / Windows® XP * Internet connection (for driver installation) * At least 35MB of hard disk space :: Images