KINESIS Advantage360 Split Ergonomic Keyboard - USB-C

Concave key wells  are scooped into a bowl shape to reduce hand and finger extension and relax muscles.
Separating the key wells positions the arms at shoulder-width to keep wrists straight and perpendicular to the home row to reduce abduction and ulnar deviation.
The keys are arranged in vertical columns (rather than staggered) to better reflect the natural motion of your fingers.
The two key wells are tented to moderately raising the thumb side of the hand. Tenting puts you in a more neutral, handshake posture and reduces the stresses caused by forearm pronation. Choose from one of three heights depending on your preferences.
The integrated palm supports reduce stressful bending of the wrists and provide a convenient place to rest your hands when you are not actively typing. Add the new premium pads for even more support (AC360PP Sold Separately).
The thumb clusters include frequently-used keys such as Enter, Space, Backspace, and Delete to  redistribute the workload away from your relatively weaker and overused little fingers to stronger thumbs.
The Advantage360 may look big, but it actually has a smaller footprint than most keyboards because we eliminated the numeric 10-key so you can place the mouse closer to your body, reducing painful over-reach.
Functions keys are located in the number row and accessed via the Fn Key for reduce reach and enhanced portability.
Mechanical Key Switches: The Advantage360 utilizes the Gateron Brown stem low-force tactile key switches.   Tactility is a slightly elevated force around the midpoint of the stroke of the key which lets you know the switch is about to be activated. A tactile response is preferred by many ergonomists, because it cues your fingers that activation is about to occur and can reduce the frequency of bottoming out the switch with a hard impact.
Integrated Tenting: With a press of a button easily switch between 3 tent settings (low, medium and high) to reduce forearm tension. The low setting replicates the same tenting angle as the original contoured keyboards.
Smart Set: The fully programmable Advantage360 features Kinesiss new-and-improved SmartSet Programming Engine that allows you to customize the keyboards layout without installing any clunky software or special drivers, or accessing the internet. Record macros, remap keys, and much, much more using convenient onboard shortcuts. SmartSet works on all major operating systems and enables users to easily create, view, edit, share, and backup their custom layouts.