Razer Blackwidow X Chroma - Mercury Edition Gaming Keyboard

At A Glance: Razer Mechanical Switches with 50 g actuation force 80 million keystroke life span Military grade metal top construction Cable management routing Chroma backlighting with 16.8 million customizable color options Specifications: Razer Mechanical Switches with 50g actuation force 80 million keystroke life span Chroma customizable backlighting with 16.8 million color options Military grade metal top construction Razer Synapse enabled 10 key roll-over anti-ghosting Fully programmable keys with on-the-fly macro recording Gaming mode option Cable management routing 1000 Hz Ultrapolling Braided fiber cable System Requirements: PC or Mac with a free USB port Windows 10 / Windows 8 / Windows 7 / Mac OS X (v10.8 - 10.11) Internet connection 100 MB of hard disk space Razer Synapse registration (requiring a valid e-mail), software download, license acceptance, and internet connection needed to activate full features of product and for software updates. After activation, full features are available in optional offline mode.