Greater Durability No matter how intense your gaming marathons get, each Razer Mechanical Switch is engineered to withstand up to 60 million keystrokes, so you™ll enjoy the Razer advantage for longer.
Individually backlit keys Whether you™re gaming under low-light, or no light, individually backlit keys ensure you never misclick after all, it could very well be the difference between victory and death.
Razer Mechanical Switches with 50g actuation force 60 million keystroke life span Individually backlit keys 10 key roll-over anti-ghosting Fully programmable keys with on-the-fly macro recording 5 additional dedicated macro keys Gaming mode option Audio-out/mic-in jacks USB pass-through 1000Hz Ultrapolling Razer Synapse 2.0 enabled Braided fiber cable Approximate size: 475mm/18.72 (Width) x 171mm/6.74 (Height) x 20mm/0.79 (Depth) Approximate weight: 1500g/3.31lbs
PC with USB port Windows® 8/ Windows® 7 / Windows Vista® / Windows® XP (32-bit) / Mac OS X (v10.7 to 10.9) Internet connection (for driver installation) At least 200MB of hard disk space Razer Synapse 2.0 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.