Humanscale Mouse Pads

Humanscale 10" Gel Mouse Pad is perfect for 90 or 90H clip mouse

Effective 11/15/2021, Humanscale requires a signature upon delivery.

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When your workstation calls for a keyboard tray that houses all of your accessories on one handy surface, design the perfect one for you with the Humanscale 500 Big Keyboard Tray.

Humanscale keyboard trays are designed to ensure that nearly all users are able to work consistently within their Neutral Reach Zone, keeping them in a comfortable posture.

A major way to avoid stress injuries is to task on a keyboard tray that allows for negative tilt keying, typically between 0 and -15°. This assists your wrists while you type and mouse, supporting them and leading you to a more comfortable working experience.

Keep your keyboard, mouse, and everything you need at your fingertips with one desk accessory. The Humanscale 500 Big Keyboard Tray is available in a Design Your Own option, letting you pick the components that aid you in working better.


  • Easily configured to meet your specific needs
  • 500 board offers the second widest single surface for a keyboard tray
  • Made of phenolic resin - an ultra-strong, remarkably thin (1/4") composite that's nontoxic, durable, and easy to clean
  • Design supports a variety of keyboards and mice combos and will fit most desks
  • Lack of mouse platforms means users don’t reach outside of their Neutral Reach Zone


Mechanisms 8 adjustable arms available
Track lengths 11" - 27" for varying desk depths
Palm rests Available in foam or gel
500 Big platform dimensions 27" W x 10.625" D
Warranty 15 years


The Humanscale 500 Big Keyboard Tray is available in black, white, or platinum. Both the keyboard mechanism and platform will come in the chosen color.


Humanscale Keyboard Mechanisms

6G mechanism

Humanscale's newest dial-a-tilt mechanism that instantly adjusts the platform's tilt without the need to lock or loosen any knobs or levers and slimmer than the 5G. The 6G mechanism is available in black or white.

Height adjustment 7": 1.75" above track to 5.25" below track
Track length Comes standard with 22" track

6F mechanism

This mechanism is specifically meant for users with a height adjustable desk, such as the Humanscale Float. The short track allows for full retraction of the keyboard tray underneath the desk. Height adjustment is made by repositioning the entire desk to bring the keyboard tray to a proper working level. This mechanism is available in black or white.

Height adjustment No height adjustment capabilities
Track length Comes standard with 12.5'' track

5GSM mechanism for limited-depth desks

This mechanism goes 4" farther underneath a desk surface, getting a keyboard tray stored out of the way on a shorter track, perfect for desks with limited depth or small spaces. This mechanism is available in black or platinum.

Height adjustment 4": 0.5" above track to 3.5" below track
Track length Comes standard with 18" track

Lateral Slider

All Humanscale mechanisms pivot 360 degrees from the point where it is mounted to the track. Some users have a need for additional side-to-side adjustability. The lateral slider provides for eight extra inches of movement from right to left. This is a useful feature for someone at a large workstation that requires them to type facing different angles or monitors.


Palm Support

For the 500 Big Board, you can select a solid 27" palm rest or a split palm rest with one 20" section and one 7" long section; this feature comes in handy if a user doesn't want a palm rest in front of their mouse or keypad (pictured in main image above). All are covered with an easy to clean, black synthetic leather.

For users with "slim" keyboards such as those made by Apple, a 19'' "slim" gel palm rest is available. Please note that this palm rest will not reach across the entire length of the tray, and will not fit flush against the keyboard tray corners like the 20'', 25'', and 27'' palm rests. The slim 19'' palm rests will sit roughly 5/8'' away from the closest corner when installed.


Humanscale Palm Rests

When designing your Humanscale 500 Big Keyboard Tray, if you choose to not add a palm support, there will be holes located at the installation points on the tray.

This is normal and part of the keyboard tray's design, but if you do not want a palm rest and installation holes in your tray, we suggest ordering another keyboard tray.

If you have any questions or need help choosing a keyboard tray, please don't hesitate to call us!


Track Length

The track mounts to the underside of your work surface. It directs and supports the Humanscale mechanism and keyboard tray as it slides forward and back. Standard length on most mechanisms is 21 5/8 inches. That length ensures that the keyboard tray can be completely stowed under your desk when not in use. Some mechanisms come standard with a shorter or longer track. Consult each description for that information, but all systems can be ordered with any track length.


Mouse Platform

A separate mouse platform is not available as this keyboard tray is large enough to support mousing on the main platform.


Mouse Pad

A mouse pad for the separate mouse platform is not available as this keyboard tray is large enough to support mousing on the main platform.


Second Mouse Pad

A mouse pad for the separate mouse platform is not available as this keyboard tray is large enough to support mousing on the main platform.


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4 Reviews Hide Reviews Show Reviews

  • 4
    Mouse Pad

    Posted by Laurie on Dec 11th 2019

    I was pleased to find this replacement for a 15 year-old mouse pad that had started coming apart at the edges. The new one fits perfectly on the mouse extension piece of my keyboard tray. The only thing that could be better is a more non-skid bottom - the mouse pad tends to slide around more than the original had.

  • 2
    The wrist rest could definitely be thicker

    Posted by Disgruntled on Jul 31st 2017

    This is a replacement for an unknown pad that fits my 10" round mousepad on an underdesk keyboard drawer. The original pad had a wrist rest that is at least 3" thick and it is great, except that it's over 15 years old and getting dirty even after cleaning, so I tried to find a good replacement. The Human Solution fits the 10" round, but the wrist rest is barely discernible and so low that your wrist is not in a comfortable position to mouse and aches at the end of the day. Useless...

  • 5
    Mouse Pad

    Posted by Talya on Jun 6th 2011

    Mouse pad is good quality. Was not the right size to fit with my humanscale mouse, so I'll have to order a larger one. But I was happy with the purchase, very comfortable and good wrist support.

  • 4

    Posted by Stacey on Feb 8th 2010

    provides good wrist support and is very comfortable

Warranty Policy

Visit Humanscale for the warranty policy for this particular product.

Return Policy

Humanscale products cannot be returned.

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