# Kensington TB550 Wireless Trackball Mouse

Source: https://figforyou.com/us/mice/kensington-tb550

- **Brand:** Kensington
- **Model:** TB550
- **Category:** Mice
- **Spec source:** Kensington product pages, checked 2026-10-20

## Purchase

Verified merchant links are available on the web page: [https://figforyou.com/us/mice/kensington-tb550](https://figforyou.com/us/mice/kensington-tb550)

## Specifications

| Spec | Value | Source |
|---|---|---|
| Ball diameter | 34 mm | https://www.kensington.com/p/products/electronic-control-solutions/trackball-products/pro-fit-ergo-tb550-trackball/ |
| DPI | 400, 800, 1200, and 1600 DPI | https://www.kensington.com/p/products/electronic-control-solutions/trackball-products/pro-fit-ergo-tb550-trackball/ |
| Sensor | Optical | https://www.kensington.com/p/products/electronic-control-solutions/trackball-products/pro-fit-ergo-tb550-trackball/ |
| Ball control | Thumb-operated | https://www.kensington.com/p/products/electronic-control-solutions/trackball-products/pro-fit-ergo-tb550-trackball/ |
| Hand orientation | Right Hand | https://www.kensington.com/p/products/electronic-control-solutions/trackball-products/pro-fit-ergo-tb550-trackball/ |
| Hand size | average to larger sized hands | https://www.kensington.com/p/products/electronic-control-solutions/trackball-products/pro-fit-ergo-tb550-trackball/ |
| Battery | Rechargeable Battery | https://www.kensington.com/p/products/electronic-control-solutions/trackball-products/pro-fit-ergo-tb550-trackball/ |
| Dimensions | 138.16 x 93.44 x 50.1mm (5.44 x 3.68 x 1.97”) | https://www.kensington.com/p/products/electronic-control-solutions/trackball-products/pro-fit-ergo-tb550-trackball/ |
| Warranty | Limited 3-year warranty | https://www.kensington.com/p/products/electronic-control-solutions/trackball-products/pro-fit-ergo-tb550-trackball/ |

## How it compares in Mice

- **DPI:** 400, 800, 1200, and 1600 DPI (source: https://www.kensington.com/p/products/electronic-control-solutions/trackball-products/pro-fit-ergo-tb550-trackball/) - Higher maximum DPI than 3 of 28 other checked models; level with 1

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