B740 Light Strike LK Optical Gaming Keyboard Smooth/Linear Zero LAG &ndash; Ultra Durable & Weighted with Water Resistant Unibody and Built-in Wristrest - Neon LED Backlit &ndash; [LK Black Switches - Gen 1] Award Winning LK (Light Strike) Optical Mechanical switches with 0.2ms response time  Black Switch  Linear and Non-Clicky. 1.5mm Actuation point and total travel distance of 3mm. Actuation force of 55g. LED Backlit Keyboard  Vivid Neon LED backlit keys. Customizable lighting profiles. Quality Built  Bloody Mechanical Keyboards are built to last and stay relevant for years to come. Spill & Dust Proof  Spill proof with advanced Nano coating over the PCB board of Mechanical Keyboard. Its easy to clean and wont ruin your keyboard. Anti-Ghost & Fully Programmable  100% Anti-ghosting and full N-key rollover over USB and fully programmable with advance macros. Tap into the future with the all fastest key response and true 1:1 raw input with precision handling Continuous optical beam delivers zero-latency and contact-free engineering The fastest and most reliable switch for competitive gaming Calibrated Precision, 1.5mm Actuation, Less Key Chatter Zero Lag, 1:1 Raw Input 25% Faster Response than Traditional Mechanical Switches No matter where you battle, an exclusive advanced Nano-coating layer adds water resistance and protects against corrosion, prolonging your keyboard&#039;s lifeline Liquid Flow-through drainage channels ensure accidental spills won&#039;t leave you out of the fight 100% Anti-Ghosting and N-Key Rollover ensures even the most complex key combinations always register quickly and accurately The improved, calculated shallow stroke increases the reactive return rate of keys, eliminating wasted key travel and finger fatigue. A reinforced space bar with balancing rail and double springs helps maintain accuracy and durability while all keys provide the satisfying feel gamers have come to know and love.