Skip to main content
Kensington Orbit Trackball Mouse with Scroll Ring (K72337US), 4 1/2X5 1/2X2"
Kensington

Kensington Orbit Trackball Mouse with Scroll Ring (K72337US), 4 1/2X5 1/2X2"

Bottom line: The Kensington Orbit Trackball Mouse with Scroll Ring ($39.99 on Amazon as of 2026-10-06): 40mm optical ball tracks from a fixed footprint - no desk space needed.

$39.99

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Buy on Amazon — $39.99 Compare to similar keyboards & mice

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 40mm optical ball tracks from a fixed footprint - no desk space needed
  • ✓ Scroll Ring spins through long docs without repeated wheel clicks
  • ✓ Truly ambidextrous shell - same feel left- or right-handed
  • ✓ Detachable wrist rest cradles the hand for long sessions

Cons

  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

The Kensington Orbit Trackball Mouse (K72337US) replaces a sliding mouse with a stationary 40mm optical trackball, so your hand stays put while the cursor moves. That matters if desk space is tight or wrist travel is what bothers you at the end of a long day. The award-winning Scroll Ring circles the ball, letting you spin through long documents and web pages without repeatedly clicking a wheel, and the detachable wrist rest cradles your hand in a neutral position during extended sessions. Kensington built the ball with a hard, absolutely spherical surface for precise optical tracking, and…

Related Products

Other products in this category you may like:

SpecPicks Verdict

SpecPicks scored Kensington Orbit Trackball Mouse with Scroll Ring using a rating × review-volume × price-fit model applied to published specs and reviews across the keyboards & mice category. Kensington's keyboards & mice lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for keyboards & mice of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Is the Kensington Orbit good for left-handed users?

Yes. The Orbit uses a symmetrical ambidextrous design that works equally well right- or left-handed, unlike thumb-operated trackballs that are handed.

How does the Scroll Ring work?

The Scroll Ring encircles the 40mm ball. You spin it with a finger to move up or down web pages and documents continuously, with no clicking required.

Does it work with a Chromebook?

Partially. ChromeOS users get standard HID trackball functions, but KensingtonWorks is not available on ChromeOS, so you cannot remap buttons or adjust speeds there.

How many buttons does it have?

Two. Both are remappable to a wide variety of program functions using the free downloadable KensingtonWorks software, which also adjusts cursor and scrolling speed.

How much desk space does it need?

It measures roughly 4.5 x 5.5 x 2 inches and stays stationary while in use, so the footprint never grows the way a sliding mouse's working area does.

Key Features

  • Optical tracking technology provides precise cursor movement for superior accuracy so you can get where you want on the screen Quickly with less hand movement, improving productivity and efficiency; The blue 40mm ball has been specially designed with an absolute spherical, hard surface for precise tracking and control
  • Unique scroll Ring let you move up and down web pages or documents with ease; ambidextrous design works equally well for both right-handed and left-handed users
  • Detachable Wrist rest softly cushions and cradles the hand and wrist in an ergonomic position for pain-free productivity during extended periods of activity on the computer
  • Free downloadable KensingtonKonnect software provides a personalized experience, giving you the ability to assign a wide variety of program functions to each of the 2 buttons, as well as adjusting cursor and scrolling speeds
  • ChromeOS user can get HID functions for a trackball but will not be able to customize their device through KensingtonWorks.

Full Specifications

BrandKensington
ColorBlack-Blue
Range30.0 feet
PatternMouse
Model NameOrbit with Scroll Ring
Style Namewired usb
Unit Count1.0 Count
Model NumberK72337US
Power SourceCorded Electric
Button Quantity2
Mfr Part NumberK72337US
Special FeatureErgonomic Design
Antenna LocationOffice
Hand OrientationAmbidextrous
Hardware PlatformPC
Compatible DevicesPersonal Computer
Enclosure MaterialPlastic
Movement DetectionOptical, Trackball
Additional FeaturesErgonomic Design
Number of Batteries1 AA batteries required.

Ready to buy?

Kensington Orbit Trackball Mouse with Scroll Ring (K72337US), 4 1/2X5 1/2X2" is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $39.99

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Related Keyboards & Mice

Keep exploring SpecPicks

Other buying guides

Browse the catalog

Editorial

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →
Kensington Orbit Trackball Mouse with Scroll Ring (K72337US), 4 1/2X5 1/2X2"
$39.99
View on Amazon →