Had an Apple II+ clone that was in a PC style case which made the whole thing more convenient as the drives were in the chassis.
The Apple II+ clone had a CPM card made by Microsoft.
The Apple II+ clone had a CPM card made by Microsoft.
https://www.diskman.com/presents/trackstar/
https://www.youtube.com/watch?v=JhRaTI76S7Q
The CPM card from Microsoft was the Z80 SoftCard: