The Humanscale 300 Curved Platform Keyboard Tray System features the Humanscale 300 Curved board which is designed to fit most natural shaped keyboards. The Humanscale 300 works well for split keyboards as well. The 300 Curved Platform System includes the most in demand features offered by Humanscale. The Humanscale Clip Mouse allows for independent keyboard and mouse positioning that easily changes from right to left hand use. True modularity means that parts can be changed to meet your changing needs, increasing both life span and the return on investment.

The Humanscale 300 Curved Platform Keyboard Tray System Features:

• Humanscale's height adjustable, 2G mechanism features a loosen, tilt, then tighten tilt adjustment and lift and lock height Choose from one of Humanscale's best selling mechanisms,  the 2G mechanism, 5G mechanism, or 6G mechanism.  A full description of each is found on the options tab
• Clip mouse platform, in your choice of either 8.5" or 10" diameter, can be used on either the left or right side, and is height, angle, and swivel adjustable independent of the keyboard tray. Platform slides forward and back for the ultimate in positioning flexibility. An additional clip mouse platform can be added at any time.
• Platforms are crafted of light and durable phenolic and are graphite in color
• Keyboard mounts on a 22" deep track and stows underneath the work surface when not in use (shorter tracks are available)
• 15 year / 24/7 warranty. Humanscale Product Warranty Information

The Humanscale 300 Curved Platform Keyboard Tray System Specifications:

2G - Humanscale's most economical keyboard tray arm offers lift and lock operation for height adjustment, and twist to unlock, adjust, and twist to lock adjustment for platform tilt

• Height adjustment range: 6.25" - 1.25" above the track - 5" below
• Tilt range: Zero to -15°

5G - Humanscale's dial-a-tilt mechanism offers lift and lock operation for height adjustment and easy, dial-a-tilt-adjustment for platform tilt

• Height adjustment range: 6.25" - 1.25" above the track - 5" below
• Tilt range: Zero to -15°

6G - Humanscale's newest mechanism is lower profile and offers better knee clearance than other Humanscale arms. It also contains less material and is lighter making it an Earth friendlier product. Adjustment controls are identical to the 5G

• Height adjustment range: 6.25" - 1.25" above the track - 5" below
• Tilt range: Zero to -15°

Humanscale Clip Mouse Size

Choose from either an 8.5" or 10" diameter mousing platform.

Buy Smart: Most users will find the 8.5" diameter adequate. A larger platform may be intrusive for some users. We recommend only going with the larger one if your mouse needs a larger mousing surface.