The Humanscale 500 Big Keyboard Tray design ensures that users type and mouse within their neutral reach zone, creating a safe, comfortable and sustainable work environment. The neutral zone in a standard office workspace is defined as the area where a user sits and works at a desk and can easily reach and interact with surrounding computer accessories, including a keyboard and mouse. Unlike older generation keyboard and mouse solutions, Humanscale keyboard trays are designed to ensure that nearly all users are able to work consistently within their Neutral Reach Zone, and thus maintain a low-risk posture. These board keep everything on one worksurface rather than use a mousing platform; this keeps a mouse on the same tilt as a keyboard in use. If you prefer to set the mousing surface angle separately, any of the other Humanscale keyboard trays aside from the 400 keyboard tray platform offer this option.
Features -
Humanscale 500 Keyboard Tray
- 500 board offers the widest single surface for a keyboard tray
- 500 Big Board keyboard platform is made of phenolic: it's an ultra-strong, remarkably thin (1/4") composite that's non-toxic, durable and easy to clean
- Humanscale keyboard trays are the highest quality on the market
- The Humanscale 500 keyboard tray platform design supports a variety of keyboards and mice combos and will fit most desks using the variety of tracks lengths available; see the Options tab for more details.
- No mouse platforms come with these boards since the worksurface is so large; users would reach too far for a mouse outside their neutral reach zone
Technical Specifications
| Mechanisms | 3 adjustable arms available |
| Track lengths | 22" |
| Palm rests | Available in foam or gel |
| 500 platform dimensions | 27" W x 10.625" D |
| Warranty | Limited lifetime warranty |
Neutral Reach Zone Description
| "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)
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Mechanism - Humanscale 500 Keyboard Tray
Choose between Humanscale's three most popular arms.
The 5G and 6G mechanisms are their newest and most user-friendly mechanisms. They are built for maximum stability and are extremely durable. They feature:
- Easy, knob-free height adjustment
- Dial-a-tilt platform allows you to set a negative tilt from 0° to -15° , accommodating the negative tilt highly recommended by most ergonomists for safe keyboarding
- 360° swivel
- Platform stows completely underneath the work surface with the standard 22" track
The 2G mechanism offers the same range of adjustment but the tilt is not as easy to set. This is a great choice if you're seeking to save some money without sacrificing quality or function.
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Humanscale 6G Keyboard Tray Mechanism
6G Specifications
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Humanscale 5G Keyboard Tray Mechanism
5G Specifications
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Humanscale 2G Keyboard Tray Mechanism
2G Specifications
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Track Length
The track mounts to the underside of your work surface and is what the mechanism slides forward and back on. Standard length on this mechanism is 21 5/8". If you do not have enough depth under your work surface to clear this, please see our Humanscale 500 & 550 Big Keyboard Tray - Design Your Own listing. Be sure to measure the depth under your desk (front to back) to confirm the track will fit; you need to have a track at least 1/2" shorter than the overall depth of your desk.
Palm Rest - Humanscale 500 Keyboard Tray
Choose no palm support or a 27" long foam or gel filled palm support. Both palm supports are easy to clean and removable.
- G27: 27" Gel palm support covered with black Lycra
- F27: 27" foam palm support covered with black synthetic leather
Professor Ergo's Thoughts:
A keyboard tray is a key component of an ergonomic workstation. Position your keyboard tray so you can type and mouse while keeping your wrists straight. The ideal height for the keyboard is at elbow height or lower. Typically you should locate the keyboard tray just above your lap height. Your upper arms should hang comfortably at your sides as you work. The keyboard tray should be gently sloped or tilted away from the user to allow the wrists to be straight instead of flexed. When properly adjusted, a keyboard tray allows the back, neck, shoulders, and wrists to relax. The size of the keyboard tray must accommodate the keyboard and any input device like a mouse. Avoid having your keyboard on a tray and your mouse on the desk.
Product Reviews for Humanscale 500 Big Board Keyboard Tray System
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