A really great idea, works perfectly.
For ESP32 FDC+ Serial Drive Server
I've been using the ESP32-FDC-SDS for a couple of weeks now on my Altair 8800C with FDC+. It's a fantastic device. Loads and writes to disks perfectly ever time. The disk emulation alone would have made this a great device. But you also have the ability to connect wirelessly and manage it with telnet and FTP. It's really well thought out and a truly great idea. I highly recommend it.