A handful of dumpers have been having issues specifically with the StarTech board you can grab on Amazon for a bit over $20 - this has a JMB368 controller, but it "should" apply to any given PEX2IDE adapter. Specifically - the adapter seems to be very compatible with any given IDE optical drive you throw at it, but the read/write speeds are "very" poor, similar to PIO4 mode speeds or as if the drive is perpetually stuck in a 2x CD-ROM read speed average regardless of parameters used.
Additionally, I had minor stability issues on my setup using a 12th gen Intel CPU/motherboard that also seem to be caused by how this card operates in Windows by default when dumping discs - this also seems to fix those issues if you've had any issues on that end.
The "fix" is just manually replacing the generic "Standard Dual Channel IDE Controller" you'll have appear in device manager with an official driver from 2009 (1.17.49.4) - extract the files from the linked cab archive (direct from Microsoft Update Catalog, it's signed/legit etc.) to any given dir and manually update the driver by pathing to the folder with the cat/inf/sys files.
https://www.catalog.update.microsoft.co … x?q=jmb36x
The entire set of drivers can be found here - since MS doesn't denote what version or x86/x64 variation as is here's an image for reference.
The newer drivers seemingly either fail to install (Device already has best available drivers installed) or simply fails outright. This specific revision for whatever reason replaces the generic one without issue and works as expected. If you want to poke at the later versions, be my guest!
Attached a .7z with both x86/x64 drivers included taken from the MS .cab archives if you prefer. Hope this helps anyone wanting to have an internal Plextor/Kreon/whatever in a modern machine without hunting for a SATA model like myself, or did so and has lived the past year with awful read speeds for CD dumping. 