Advantage Pro Contoured Keyboard

What the Manufacturer says 

• Separate key wells for each hand; this separation minimizes strain and stretching by positioning your arms approximately at shoulder width and with wrists straight. This design reduces abduction and ulnar deviation (common symptoms experienced with repetitive strain injuries such as carpal tunnel syndrome and tendonitis).
• Concave Key Wells; reduces hand and finger extension by accommodating the various lengths of your fingers and placing your hands and fingers in a more relaxed and neutral position.
• Vertical key layout; keys are arranged in vertical columns to reflect natural motions of your fingers, and the keypads are sculpted and concave to fit the varying lengths of your fingers.
• Separate thumb keypads; the thumb keypad includes often used keys such as "Enter", "Space", "Backspace", "Delete" and the combination keys, "Control" and "Alt" on the PC ("Command" and "Option" on the Macintosh). Redistribute the workload from your relatively weaker and overused little fingers to stronger thumbs.
• Closer placement of function keys; soft-touch function keys are positioned closer to the alphanumeric keys to reduce awkward motions and stretches, particularly for key combinations involving thumb keys (Control and Alt, for example).
• 20-degree lateral tilt design; the keyboard design places your hands so that your thumbs are positioned approximately 20 degrees higher than pinky fingers to help minimize stresses associated with pronation and static muscle tension while enabling maximum keying productivity.
• Integral palm support; the palm support with optional self-adhesive pads enhances comfort and reduces stressful extension of your wrist.
• Single-action foot switch included (supports triple action foot switch). Additional foot switches are available; up to three foot switches can be used to perform keystrokes, redistributing a portion of the workload away from your hands. For instance, a foot switch can be used to activate the embedded 10-key pad or "shift" key. View additional foot switch information. 

• Compatible with PC & Mac operating systems; instantly configure the layout for Windows, Mac and non-Windows operating environments as well as advanced programming features
• Automatically switch between PC and Mac operating systems
• QWERTY layout; however individual keys can be re-mapped or copied to other key locations
• Low-force, tactile key switches; low-force (45 grams), long travel (4 mm), approximately 2 mm activation
• Embedded 10-key layout; a traditional numeric (10-key) keypad is embedded into the right alphanumeric keywell, key legends are located on the front edge of the key caps. The 10-key can also be programmed to operate from the left keywell.
• Smaller footprint; dimensions of keyboard:16.5"(width) x 2.9" (height) x 8 1/8" (depth, front-to-back)
• Integrated two-port USB hub; USB devices can be hot-plugged safely
  Macro programmable with double memory; up to 48 macros can be programmed and stored in the keyboards on-board memory (24 macros yields 142 characters, 36 macros yields 94, and 48 macros yields 70)
• Memory locking switch protects users or managers against accidental or unauthorized programming of the keyboard
• Single-action foot switch included (supports triple action foot switch)
• Two Year Limited Warranty
• Color: Glossy metallic finish