PERIXX PERIBOARD-330 Ergonomic Split Keyboard with Backlighting Key White and two addi tional USB ports on Natural Ergonomic Keyboard That Promotes and typing angle. The split key frame is designed to reduce for Unnatural bending of your Wrists and fore arms, for a more relaxed typing experience PERIBOARD-303 on Comes With Able attach wrist rest raiser That Can Be Adjusted According to your preferences 3 typing typing angles :. . flat straight position, wrist neutral position, and positive tilt position Featuring an integrated four-way scroll wheel and convenient multimedia keys 12 The keys are quiet and low-profile, so you can focus on your every-day tasks.