Adesso Trackball iMouse T40

By Xah Lee. Date: 2019-02-01. Last updated: 2022-05-19.

Adesso Wireless Trackball iMouse T40, came out in 2018.

Adesso trackball T40 qT7d-s1200 — Adesso Trackball T40 2268×2268 [2022-05-19 image source https://twitter.com/nekotrackball/]

Wireless. 2.4 GHz radio frequency, range of up to 10 meters.
buttons are programmable. Requires installing their software for Microsoft Windows.
5 levels of DPI resolutions, 400dpi to 4800dpi
Optical sensor

Adesso iMouse T40 - Wireless Programmable Ergonomic Trackball Mouse

Ball Size

Ball diameter: 40 mm

EIV2_trackball_G5TdN

Trackball Ball Sizes and Replacement

Adesso Trackballs T50 T40 T30

adesso trackball t50 t40 t30 Hqpb-s1300 — left to right: • T50 • T40 • T30 4032×2268 [2022-05-19 image source https://twitter.com/nekotrackball/]

adesso trackball t50 t40 t30 7yzt-s1300 — bottom to top: • T50 • T40 • T30 2865×3820 [2022-05-19 image source https://twitter.com/nekotrackball/]

Adesso Trackball

T50
T40