This key arrangement was ergonomically designed to prevent carpal tunnel syndrome and other repetitive strain injuries associated with typing for long periods of time. The keyboard uses a fixed-split design, with each half of the alphanumeric section separated, laterally rotated, and tilted upwards and down from the center of the keyboard. The Microswitch division of Honeywell, which was responsible for that company's keyboards and was acquired by Key Tronic in early 1994, is also credited with design input. It was designed for Microsoft by Ziba Design with assistance and manufacturing by Key Tronic. The first generation of the Microsoft ergonomic keyboards, named the Natural Keyboard, was released in September 1994, designed for Microsoft Windows 95 and Novell Netware.

^ Adds 15 hot keys PrtScrn and additional Delete added to the end of F1– F12 row numpad features = in place of Num Lock and additional row on top: Clear, (, ) and ← Backspace right ⊞ Win and ≣ Menu are replaced with Office and ☺.

^ Adds 4 hot keys including Calculator above numpad PrtScrn and additional Delete added to the end of F1– F12 row numpad features Clear in place of Num Lock.

^ a b Media related functions are integrated via F-lock on F1- F12.

^ Nonstandard 2-column, 4-row layout columns (from left to right) are Del (double height Del)/ Ins and Home/ End/ PgUp/ PgDn.

^ Separate number pad integrates Clear in place of Num Lock and has additional 3-button row on top: Num Lock, Calculator, and ← Backspace Calculator dublicaded on main unit.

^ Adds 16 hot keys =, (, ) and ← Backspace duplicated above numpad.

Ins moved to PrtScrn as the secondary function activated by F-Lock

^ Nonstandard 2-column, 3-row layout columns (from left to right) are Home/ Del (double height Del) and End/ PgUp/ PgDn.

^ Adds 17 hot keys Ins integrated with Print Screen.

^ Adds 19 hot keys, two of which are programmable using IntelliType Pro software.

^ Nonstandard 2-column, 3-row layout columns (from left to right) are Home/ End/ Del and PgUp/ PgDn/ Ins.

^ a b c d e Conventional 3-column, 2-row layout columns (from left to right) are Ins/ Del, Home/ End, and PgUp/ PgDn.

^ a b Standard 101-key QWERTY keyboard layout with the addition of two Windows keys and a contextual menu key on the spacebar row.

Split spacebar Alcantara-covered palm rest, aluminium top body part Numpad is a separate wireless unit split spacebar Wireless using USB corded receiver, PS/2 via adapter PS/2, USB (cord terminates in both types)į-Lock to toggle from standard software-defined Fn functions Designed by Ziba Design and manufactured by Key Tronic

Ms ergonomic keyboard 7000