Humanscale 4GAD Above Desk Adjustable Keyboard Arm Mechanism

Description

Humanscale 4G Above Desk mechanism provides 4G functionality with a longer arm for use above the work surface. 11.5" height adjustment (8.5" above track to 3" below track). Comes standard with 27" track.

Humanscale offers nine award-winning, negative-tilt mechanism options, from our original standard-bearer, the 2G, to our latest 5G, which combines easy dial-a-tilt and height adjustability with the strongest, most stable arm on the market. All of our mechanisms encourage low-risk typing postures and feature easy and intuitive adjustability.

Features

• Height Adjustment 11.5" (8.5" above track to 3" below track)
• Maximum depth below bottom of Keyboard 1/2"
• Standard Track Length 27"
• End of Track to Beginning of Platform 6"
• Platform tilt adjustment 0 degree to -15 degree

The Neutral Reach Zone The Neutral Reach Zone is the area that can be conveniently reached with a sweep of the forearm while the upper arm hangs in a natural position at the side. (Sanders & McCormick, 1993) Unlike older generation keyboard/mouse solutions, our platforms are designed to ensure that nearly all users are able to work consistently within their Neutral Reach Zone, and thus maintain a low-risk, sustainable posture.

Option 1 - Track

Refers to the under-desk mounted track that the mechanism slides along. Measure the amount of flat space you have on the under-side (from front to back of your desk) to determine which track length best suits you. The longer the track you are able to fit, the farther underneath the desk you will be able to slide the platform. The track measures 5-1/2" in width and is available in seven lengths: