Kensington Orbit K72337US Trackball: Scroll Without Moving the Device

The pointer moves while the trackball stays in place

A crowded desk makes an ordinary mouse announce its limits quickly: the pointer reaches the screen edge just as the mouse reaches a notebook, keyboard, or coffee mug. The Kensington Orbit K72337US changes the motion instead of asking for more surface. Its body stays put while a finger rolls the blue 40 mm ball, so pointer travel does not require sweeping the whole device across the desk.

That is the first practical reason to buy this model. A narrow keyboard tray, shared workstation, or laptop corner can keep a consistent pointing area even when the surrounding space changes. Kensington identifies the ball as finger-operated and the shell as ambidextrous, so the same unit can sit on either side of a keyboard. The manufacturer also lists a detachable wrist rest. None of that guarantees comfort or prevents strain, however; hand position, sensitivity settings, task length, and individual fit still matter.

The scroll ring is the reason to choose this Orbit

The ring around the ball handles vertical scrolling without turning the ball into a second control. On long web pages, documents, and lists, one finger can move the pointer and another can rotate the ring. That is more coherent than buying a minimal trackball and then discovering that routine scrolling still feels awkward.

Kensington pairs the ring with two buttons. Its current product page says KensingtonWorks can assign functions to those buttons and adjust cursor and scrolling speed. The hardware also uses a wired USB connection, so setup does not involve pairing or batteries. Those are two distinct buying benefits: the stationary ball-and-ring layout reduces the surface needed for navigation, while the wired connection removes charging and battery management from a desk accessory.

The same simplicity creates a boundary. Two buttons are enough for ordinary left and right clicks, but buyers who rely on dedicated back, forward, gesture, or application shortcuts may want a trackball with more physical controls. The cable is dependable, yet it also rules out a clean wireless setup.

Ambidextrous hardware does not mean identical software everywhere

Kensington's exact K72337US support page lists wired operation with Windows, macOS, and Chrome OS. The symmetrical body makes switching hands physically straightforward, and the scroll ring does not favor a conventional right-handed mouse grip. That can be useful on a shared computer or for someone who deliberately alternates hands.

Software support needs a closer read. Kensington says ChromeOS users receive basic HID trackball functions but cannot customize the device through KensingtonWorks. The current product page also says Windows computers using ARM processors are not supported by that software. Before buying for a managed Chromebook or a Windows-on-ARM laptop, decide whether basic pointing, clicking, and scrolling are enough; do not assume every advertised customization follows the hardware to every operating system.

A simple trackball still asks for a new habit

Moving a ball with the fingers feels different from guiding a mouse with the whole hand. Expect an adjustment period for precise selections, drag operations, and the relationship between ball speed and cursor speed. The instruction guide explains how to change pointer and scroll sensitivity in the operating system, which is a better first response than judging the device by its default settings.

The ball is also a contact surface that eventually needs attention. Kensington's guide says to push the ball out from underneath and clean it with a dry cloth during troubleshooting. That maintenance is simple, but it is real.

Choose the K72337US when desk space is tight, a fixed ambidextrous body is useful, vertical scrolling matters, and a wired two-button control set is enough. Skip it when you need wireless freedom, many dedicated shortcuts, guaranteed cross-platform customization, or a conventional mouse that requires no trackball learning curve.