view cart
IE 7 is not supported; upgrade to a newer version of IE or use a different browser.
Free accessory with UPLIFT desk purchase >

Knoll Prospero Keyboard Platform

item#: KNL302

The Knoll Prospero Keyboard Platform features one platform large enough for both your keyboard and mouse, with height and tilt adjustment to get the platform right where you need it. With a 26.25" wide surface, large enough to support a mouse on either side of your keyboard, and cable management loops on either side to secure keyboard and mouse cords, the Prospero is an ideal solution for ambidextrous mousing. With several mechanism options for different levels of knob-free height adjustment, the Knoll Prospero Keyboard Platform is a versatile and sturdy keyboard tray solution.

This keyboard tray is no longer available.
Shop our Most Popular Ergonomic Keyboard Trays to find a great replacement.

Choose Options Belowclick on for more info
- required

Easy Lift Arm

For more height adjustment, the Easy Lift Arm features 7.04'' of variable height adjustment (2.83'' above the track to 4.21'' below). It also features negative tilt adjustment from 0° to 15°.

Knoll Prospero Keyboard Platform Easy Lift Arm

Sit-Stand Arm

For maximum height adjustment, the Sit-Stand Arm gives you a full 11.57'' of variable height adjustment, and negative tilt from 0° to 15°. The Sit-Stand Arm features torsion spring-assisted variable height adjustment from 6.40'' above the track to 5.17'' below.

Knoll Prospero Keyboard Platform Sit-Stand Arm

Back to options


All Knoll keyboard platform mechanisms come standard with 360 degrees of rotation at the mechanism. For even more flexibility and adjustment, you can add a second pivot point at the platform. This allows the platform to move independently from the arm, so that it can remain parallel to your desktop when the arm is rotated.

Knoll Keyboard Platform pivot

Back to options

Track Length

The Knoll Prospero Keyboard Platform is available with five different track lengths to accommodate desktops of various depths. The minimum clearance required under your desktop is the length of the track plus 1/2''.

  • 16'' track
  • 17.75'' track
  • 21.63'' track
  • 22.63'' track
  • 25'' track

Back to options

Delivery Options

Large items like this one are shipped via freight truck directly from the manufacturer. Knoll offers free freight delivery to any commercial location with a loading dock that is accessible to a 53' trailer. If you do not have access to a loading dock, or if your items are being delivered to a residence, we are required to first ship the items to a local white glove delivery agent for assembly and inside delivery. If you are purchasing more than one item, we are able to offer discounted pricing on white glove assembly and delivery. Please call 1-800-531-3746 for details.

Back to options

UPLIFT Large Keyboard Tray
List Price: $249.00
Our Price: $179.00
Knoll Romeo + Juliet Keyboard Platform
List Price: $526.00
Our Price: $341.90
Knoll Act I Keyboard Platform
List Price: $412.00
Our Price: $267.80

The Knoll Prospero Keyboard Platform gives you an easily height-adjustable keyboard and mouse platform on the same large surface. With an integral, supportive polyurethane wrist rest across the platform and dual cable management loops on either side, you just slide your keyboard tray over and switch the side the mouse is on for easy left- or right-handed mousing and comfortable typing for almost any user. Large enough to hold most keyboard and mouse combinations, yet low-profile enough to stow away, the Knoll Prospero Keyboard Platform will fit most workstation applications, giving users a relaxed, comfortable typing and mousing experience.

Features -
Knoll Prospero Keyboard Platform

  • Phenolic plastic keyboard platform is wide enough for your keyboard and mouse on the same plane
  • Features your choice of short arm, standard easy lift arm, or sit-stand arm and mechanism, all with an adjustable 15 degrees of negative tilt and 360 degrees of rotation where the arm meets the track
  • Option for a second pivot point at the platform allows the keyboard tray to stay parallel to your desktop as you rotate the arm
  • Spring-assisted lever- and knob-free mechanism gives you easy lift-and-lock height adjustment
  • 1/4'' thick platform features a low profile, clearing up leg space and allowing for storage when the tray is not in use
  • Surface features cable management loops on both the left and right to secure keyboard and mouse cords
  • Includes integral wrist rest of nylon-upholstered dual density polyurethane for extra typing and mousing comfort
Knoll Prospero Keyboard Platform Specifications

Platform dimensions 26.25'' W x 11.5'' D x 0.25'' thick
Tilt adjustment 15° negative
Swivel at mechanism 360°
Track lengths 16'' to 25'' L
Warranty 10 years

Disclaimer: We do not accept cancellations or order revisions for any Knoll items ordered. See Knoll's No Cancellations or Revisions Policy for details.

Professor Ergo's Thoughts:

The Knoll Prospero Keyboard Platform features a pliant, supportive and comfortable wrist rest that spans the width of the platform, as well as keyboard and mouse cable management loops on either side, allowing for ambidextrous mouse use. We recommend switching between mousing hands throughout the day to help combat existing pain or repetitive stress injuries, or to prevent these issues.

Please contact us for pricing and availability
UPLIFT Height Adjustable Sit Stand Desk
Original Price: $899.00
Our Price: $499.00
Evoluent Vertical Mouse 4: Right Hand Wired Mouse VM4R
Original Price: $99.95
Our Price: $87.95
Kinesis Freestyle2 Adjustable Split Keyboard for PC
Original Price: $99.00
Our Price: $89.00
Goldtouch V2 Adjustable Keyboard for PC and Mac - GTU-0088
Innovative EVO II LCD Monitor Arm
Original Price: $220.00
Our Price: $151.00
Original Price: $109.00
Our Price: $85.00
GoldTouch Gel Filled Palm Support Set
Original Price: $19.95
Our Price: $17.95
Please contact us for pricing and availability

Customer Reviews

Knoll Prospero Keyboard Platform

Chat with us

Or Call

8-7 Mon-Fri, 10-6 Sat (CT)