From the Manufacturer:

Product Description:
A proven design and years of longevity make the standard Goldtouch Adjustable Keyboard a leading recommendation among Risk Managers, Certified Professional Ergonomists, Physical Therapists and Occupational Therapists. Because a Goldtouch keyboard is designed to fit the range of body types, not just an average, the standard Goldtouch Adjustable Keyboard is the only keyboard designed to properly straighten the wrists and arms while aligning with the shoulders to achieve a neutral typing posture. No other keyboard allows for the range of adjustability as a Goldtouch Adjustable keyboard.

Product Features:
• Adjustability: 0°-30° adjustment for ulnar deviation (wrist splay) in the horizontal plan, combined with 0°-30° adjustment for wrist pronation (vertical tenting)
• Soft key touch, low activation force and full key travel distance provides keying comfort and reduces risk from “bottoming out” when keying.
• Compact size allows for use in limited space environments, and reduces shoulder abduction when reaching for mice and other peripherals.
• Ease of use and intuitive design allow new users to adjust the keyboard to a comfortable typing position without additional accessories or attachments.
• Compatible with Windows 2000, XP and Vista.

Disclaimers
* Do Not Plug your USB Goldtouch Keyboard into the USB Keypad. Your PC will not recognize it.