Elecom EX-G Pro Trackball
This came out around 2018-08.
![elecom ex-g pro trackball f5d09](itb/elecom_ex-g_pro_trackball_f5d09.jpg)
Scroll wheel can be pushed left/right.
Many amazon reviews says the ball has strong friction when you start to roll it. This is bad when you need pixel precision.
![elecom ex-g pro trackball c1b01](itb/elecom_ex-g_pro_trackball_c1b01.jpg)
- 3 modes: bluetooth, or USB dongle wireless, or wired.
- Rechargeable. Just plug it in.
- Gaming grade optical sensor.
- DPI can be changed.
![elecom ex-g pro trackball back 2jtch](itb/elecom_ex-g_pro_trackball_back_2jtch.jpg)
Ball Size
Ball diameter: 34 mm.
Work in Linux?
Yes. Plug and play.
Linux kernel dated after 2019-05-30 supports the Fn1 Fn2 Fn3 buttons.
![elecom trackball linux kernel 2020-03-21 fbqvc](imisc/linux_kernel_patch_for_elecom_trackball_2020-03-21_fbqvc.png)
source https://github.com/torvalds/linux/blob/master/drivers/hid/hid-elecom.c
You can remap mouse buttons in Linux using xinput
.
[see Linux: Swap Mouse Buttons]
Compared to EX-G
The EX-G Pro is improvement of the previous EX-G.
![ee 52d47](itb/elecom_ex-g_pro_trackball_size_52d47.jpg)
![eeh 8362d](itb/elecom_ex-g_pro_trackball_8362d.jpg)
• Elecom EX-G Pro Trackball • Elecom EX-G Trackball
![elecom trackballs comparison 2020-05-21 rw242](itb/elecom_trackballs_comparison_2020-05-21_rw242.png)