Kensington TB550 Wireless Trackball Mouse
Category: Mice
Key specschecked 2026-10-20
- DPI
- 400, 800, 1200, and 1600 DPI
- Battery
- Rechargeable Battery
- Sensor
- Optical
Where to buy
Specifications
Each value below was read from Kensington's own pages (checked 2026-10-20); the Source column links to that page.
| Spec | Value | Source |
|---|---|---|
| Ball diameter | 34 mm | kensington.com |
| DPI | 400, 800, 1200, and 1600 DPI | kensington.com |
| Sensor | Optical | kensington.com |
| Ball control | Thumb-operated | kensington.com |
| Hand orientation | Right Hand | kensington.com |
| Hand size | average to larger sized hands | kensington.com |
| Battery | Rechargeable Battery | kensington.com |
| Dimensions | 138.16 x 93.44 x 50.1mm (5.44 x 3.68 x 1.97”) | kensington.com |
| Warranty | Limited 3-year warranty | kensington.com |
How it compares in Mice
A count of the checked models that state a comparable value, from the same values as the table above. It is not a score.
- DPI 400, 800, 1200, and 1600 DPI — Higher maximum DPI than 3 of 28 other checked models; level with 1
Related buyer guides
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