An ergonomically designed keyboard is essential for every workstation. Ergonomists agree that the healthiest typing posture is one that allows the wrists to maintain a neutral or slightly pronated posture – straight or bent at a slightly downward angle. For that reason, Humanscale designers created our under desk keyboard trays, which allow the keyboard to be ergonomically positioned anywhere from 0 degrees to a -15 degree angle.
PRODUCT INFORMATION
![]()
Humanscale 900 Tray
![]()
Arm Selection
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
Humanscale 900 Tray
Keyboard Support
In many ways, a keyboard support is the heart of an ergonomic workstation. As reach and vision drive posture, our keyboard tray allows the user to sit in a healthy, neutral posture through bringing the keyboard and mouse to the user in an ergonomic position.
Well Designed
A well-designed keyboard tray offers protection from carpal tunnel syndrome, neck and back pain and other musculoskeletal issues.
Postural Benefits
These postural benefits can’t be achieved by just using a keyboard on a height-adjustable work surface.
Arm Selection
2G
5G
6G
5GSM
5GAD
Humanscale keyboard 900's have been the heart of any workstation. The keyboard tray allows anyone to sit in a neutral postures and bringing the keyboard and mouse to the person rather then the you to the keyboard and mouse. After many years of designing the perfect ergonomic keyboard was made. The design offers protection from carpel tunnel syndrome, back pain, neck strain, and other musculature issues.
Mouse Platform
The Clip mouse allows the user to change positions of the mousing platform to support their most ergonomic position. With lateral, depth, and tilting adjustments the 900 keyboard tray can be positioned correctly where the user truly needs it. It also supports left handed and right handed users.
High clip mouse platforms are models 90 and 91 and support two positions. The first is parallel and to the left or right of the keyboard. The next position is 1.5" above the keyboard tray.
The clip mouse features add's at least 4" to a max of 10" to left or right hand side of the keyboard tray.
| 8.5" | Clip Mouse Left or Right | 90 |
| 8.5" | Clip Mouse D is for Dual Both sides | 90D |
| 8.5" | High Clip left or right | 90H |
| 8.5" | High Clip D is for Dual Both sides | 90HD |
| 10" | Clip Mouse Left or Right | 91 |
| 10" | Clip Mouse D is for Dual Both sides | 91D |
| 10" | High Clip Left or Right | 91H |
| 10" | High Clip D is for Dual Both sides | 91HD |
Clip Mouse
Side View
| 8" | Swivel Right | 11R |
| 8" | Swivel Left | 11L |
| 8" | Swivel Dual | 11D |
| 10" | Swivel Right | 12R |
| 10" | Swivel Left | 12L |
| 10" | Swivel Dual | 12D |
Swivel Left or Right
Swivel Dual
The swivel mouse attaches to Humanscale's standard platform that supports all standard keyboards. The swivel allows for a huge range of adjust-ability within your sitting zone.
Corner Solution Accessories
CORNER SLEEVE DE100
• Fits desks 1" to 1.5" thick
• Dimensions: 29.5" x 12.188"
• Color: Black (standard)
CORNER SLEEVE DE450
• Fits desks 1.5" to 2.5" thick
• Dimensions: 38" x 13.75"
• Color: Black (standard)
CORNER SLEEVE DE400
• Fits desks 1" to 1.5" thick
• Dimensions: 38" x 13.75"
• Color: Black (standard)
CORNER SLEEVE DE250
• Fits desks 1.5" to 2.5" thick
• Dimensions: 16" diameter
• Color: Black (standard)
CORNER SLEEVE DE200
• Fits desks 1" to 1.5" thick
• Dimensions: 16" diameter
• Color: Black (standard)
CUSTOMER REVIEWS
Related Products
SKU: AF-AT-D-P-S
AVAILABILITY: In stock (0 items)
PRODUCT TYPE: Monitor Arm
VENDOR: Atdec
The AF-AT-D is designed to accommodate two monitors. The smooth-moving ball bearing joints are durable and allows for flexibility and maximum functionality. It includes bolt through and desk clamp mount options and you may opt to install two monitor back...
$276.00
SKU: BT1012345
AVAILABILITY: Out of Stock
PRODUCT TYPE: Bipod
VENDOR: Accu-Shot
Strong rifle support with a robust build. The BT10 mounts directly into standard 1913 Picatinny rail through a low-profile, two-screw clamp assembly. Crafted from hard anodized, T6061 Aluminum, this product is capable of +/- 15 degrees of preloaded pan and...
$219.95
SKU: BT10-12345
AVAILABILITY: Out of Stock
PRODUCT TYPE: Bipod
VENDOR: Accu-Shot
The Atlas BT10-LW17 Bipod is crafted from T6061 aluminum, which ensures a sturdy build. No wonder it is military and law enforcement circles as a premium bipod support for rifle shooting. The BT-LW17 attaches to standard 1913 Picatinny rail via...
$279.95
SKU: PACFCB
AVAILABILITY: In stock (100 items)
PRODUCT TYPE: TV ceiling adapter
VENDOR: CHIEF
Get content seen from all angles with the back-to-back accessory that puts two flat panels onto the FCS1U Cable Floor-to-Ceiling mount. Great for low-profile dynamic digital signage that keeps the eye focused on the content. Allows signage to be displayed in areas...
$259.00
SKU: LTA1U
AVAILABILITY: In stock (100 items)
PRODUCT TYPE: Tilt Wall Mount
VENDOR: CHIEF
Chief's Fusion tilt wall mounts were developed based on installer feedback and direct observations of installers in the field. Favorite Fusion features include Centerless shift, Centris tilt and ClickConnect Latching. Benefits included increased stability, fast installation, easy cable management...
$224.00
