Elecom EX-G Pro Trackball

By Xah Lee. Date: . Last updated: .

This came out around 2018-08.

elecom ex-g pro trackball f5d09
Elecom ex-g pro trackball

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
8 buttons total. 3 standard, plus 4 extra buttons.
elecom ex-g pro trackball back 2jtch
back 〔image source https://imgur.com/a/L6hDHfh〕

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
linux kernel patch for elecom trackball
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.

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• Elecom EX-G Trackball • Elecom EX-G Pro Trackball
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The ball is more exposed for better control.
• Elecom EX-G Pro Trackball • Elecom EX-G Trackball
elecom trackballs comparison 2020-05-21 rw242
• Bitra Index M-MT1DRSBK • DEFT M-DT2DRBK • DEFT Pro M-DT1MRXBK • EX-G M-XT3DRBK • Bitra Thumb M-MT1DRSBK • M-XT4DRBK

Where to Buy