The Adesso 124-154977-001 Tru-Form Media Ergonomic Keyboard has a split-key design for ergonomic comfort conforms to your natural hand positions reducing tension in the shoulders, arms, and wrists. The embedded multimedia and internet hotkeys allows you to control your home entertainment functions with built-in multimedia and internet features on the keyboard. Manage the power of your computer from the touch of a few buttons in "Power Key", "Sleep Key", and "Wake Key". The low profile membrane key switch features more than five million lifecycles and is designed with a silicone rubber material. This keyboard is government certified through API with a Tempest 4 Pin interface designed specifically for use with Tempest Systems.