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ergo m575

Purchased 2023-06 for 41$ for work.

Links

1. amazon link

1. 34 mm blue ball.
2. Kept in desk at work.
3. Uses double A Battery
4. No Rubber but still decent trackball
5. I tried an MX Ergo Silver ball in this and it was to tight and scratchy
6. This makes me think the m575 uses a smaller track ball so I need to keep the blue one in it.