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20 Mar, 2026
Kensington Pro Fit Ergo TB550 Trackball
£38.60
£46.32 inc. VAT
Out of Stock(0)MPN: K72196WW
🚚 Next-day delivery £4.95
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Key Features
Kensington Pro Fit Ergo TB550 Trackball EQ
Trackball
ergonomic
optical
9 buttons
wireless
2.4 GHz, Bluetooth
USB wireless receiver
Product Overview
AI-generated summary
The Kensington Pro Fit Ergo TB550 is one of those “small upgrade, big comfort” trackballs. If you spend long stretches clicking and dragging in spreadsheets, CRM screens, or admin systems, the thumb-operated trackball can feel noticeably easier on your wrist than a conventional mouse. It’s also a decent value at ~£38 ex‑VAT because you’re buying comfort and less strain rather than chasing flashy extras—Kensington generally nails the build quality for the price.
That said, it’s not for everyone. If you mainly do high-precision CAD/graphic work or you’re very used to a standard mouse, trackball control can take a bit of getting used to (your thumb has to learn the movement patterns). It’s also a tougher sell for people who need speed and lots of rapid pointer movement—trackballs tend to reward steady, deliberate navigation more than twitchy workflows. Overall: I’d recommend it for UK office/IT environments where repetitive mouse use is the pain point, but I wouldn’t push it as a “default mouse for everyone.”
Why This Product
Ergonomic Design
A sculpted design provides all-day comfort. The Pro Fit™ Ergo TB550 features a unique 45° tilt that helps improve wrist and forearm alignment. A 4D scroll wheel supports both vertical and horizonta...
Dual Wireless (Bluetooth® Low Energy (LE) + 2.4GHz) Connection Options
The Pro Fit™ Ergo TB550 includes a choice of Bluetooth® Low Energy (LE) and 2.4GHz wireless connections (2.4GHz USB-A nano receiver included).
Rechargeable Battery
The Pro Fit™ Ergo TB550 provides up to 4 months of battery life from a single charge.
Sustainability Attributes
Certified recycled content that conforms to SCS Recycled Content Standard V8-0 for a minimum 51% post-consumer recycled content of the total plastic components. Excludes PCB assembly, rechargeable ...
Patented Cleaning System
The Pro Fit™ Ergo TB550’s unique, easy-to-clean design features a built-in trackball ejection button to effortlessly remove the trackball for cleaning when needed.
High-Quality Optical Tracking
An optical sensor accurately tracks the 34mm thumb-operated trackball, giving users smooth cursor control and optimal precision. The trackball features 4 switchable cursor speeds (400, 800, 1200 an...
Specifications
Mouse
Number of scroll wheels1
Scrolling directionsVertical
PurposeOffice
Connectivity technologyWireless
Device interfaceRF Wireless + Bluetooth
Design
Form factorRight-hand
Ergonomic designY
Product colourBlack,Grey
Surface colorationMonochromatic
MaterialABS synthetics,Aluminium,Plastic,Rubber
Ergonomics
Wireless range10 m
Plug and PlayY
Power
Power sourceBatteries
RechargeableY
Number of batteries supported1
Battery typeBuilt-in battery
Battery technologyLithium
System requirements
Windows operating systems supportedWindows 10,Windows 10 Education,Windows 10 Education x64,Windows 10 Enterprise,Windows 10 Enterprise x64,Windows 10 Home,Windows 10 Home x64,Windows 10 IOT Core,Windows 10 IoT Enterprise,Windows 10 Pro,Windows 10 Pro x64,Windows 10 x64,Windows 11,Windows 11 Enterprise,Windows 11 Enterprise x64,Windows 11 Home,Windows 11 Pro,Windows 11 x64
Mac operating systems supportedMac OS X 10.14 Mojave,Mac OS X 10.15 Catalina,Mac OS X 10.15.3 Catalina,Mac OS X 11.0 Big Sur,Mac OS X 12.0 Monterey,Mac OS X 13.0 Ventura,Mac OS X 14.0 Sonoma,Mac OS X 15.0 Sequoia
Mobile operating systems supportediPadOS 17.1.1,iPadOS 17.4,iPadOS 17.5
Other operating systems supportedChromeOS
Operational conditions
Operating temperature (T-T)0 - 40 °C
Storage temperature (T-T)-15 - 60 °C
Operating relative humidity (H-H)0 - 85 %
Weight & dimensions
Width93 mm
Depth138 mm
Height50 mm
Weight142.6 g
Receiver width15 mm
Packaging data
Quantity per pack1 pc(s)
Cables includedUSB Type-A to USB Type-C
Package width57 mm
Package depth104 mm
Package height166 mm
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