Technical DetailsStyle: UltimateProduct DetailsStyle Name: UltimateProduct Dimensions: 18.5 x 7.2 x 1.5 inches ; 3.3 poundsShipping Weight: 5.4 poundsItem model number: RZ03-00384600-R3U1Product DescriptionStyle: UltimateRazer Black Widow Ultimate 2014 Elite Mechanical Gaming Keyboard (RZ03-00384600-R3U1)Feel the DifferenceThe Razer BlackWidow Ultimate features the all-new Razer Mechanical Switches that have been designed from the ground up with the aim of elevating the speed and responsiveness of the Razer BlackWidow gaming keyboard beyond the capabilities of current-gen mechanical switches. Tested and validated by the world痴 top eSports athletes, we have identified the optimal actuation distance and reduced the tolerance for faster commands and greater precision when compared to standard mechanical switches. Requiring a force of only 50g to actuate, these new switches reset at almost half the distance of traditional mechanical switches, so you can double-tap effortlessly with blazing speed. While conventional mechanical switches are great for typing, the Razer Mechanical Switches are engineered to enhance both your gaming and typing experience.Feel The DifferenceAll New Razer Mechanical SwitchesDesigned specifically for gaming, the all-new Razer Mechanical Switches actuate at an optimal distance, giving you speed and responsiveness like never before.Greater durabilityNo matter how intense your gaming marathons get, each Razer Mechanical Switch is engineered to withstand up to 60 million keystrokes, so you値l enjoy the Razer advantage for longer.Individually backlit keysWhether you池e 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.Tech SpecsRazer Mechanical Switches with 50g actuation force60 million keystroke life spanIndividually backlit keys10 key roll-over anti-ghostingFully programmable keys with on-the-fly macro recording5 additional dedicated macro keysGaming mode optionAudio-out/mic-in jacksUSB pass-through1000Hz UltrapollingRazer Synapse 2.0 enabledBraided fiber cableApproximate size: 475mm/18.72・(Width) x 171mm/6.74・(Height) x 20mm/0.79・(Depth)Approximate weight: 1500g/3.31lbs