Found in 2 comments on Hacker News
ciupicri · 2025-06-25 · Original thread
By PC keyboard port are you referring to AT? [1]

[1] https://www.oreilly.com/library/view/pc-hardware-in/05960051...

acomjean · 2023-03-19 · Original thread
I had a Kenwood truex 52x drive. Worked well. It basically used 7 lasers to read across the disk at a slower speed. It generally worked well.

https://www.oreilly.com/library/view/pc-hardware-in/05960051...

https://www.pctechguide.com/cd-rom/cd-rom-truex-technology