I'm sure Apple has an ADB->USB dongle for $19.99 that you can use to connect a larger bit of storage.
Actually, did these guys have SCSI ports on the back? SCSI->USB or SCSI->TB4 would be an fun cable.
Actually, did these guys have SCSI ports on the back? SCSI->USB or SCSI->TB4 would be an fun cable.
You can theoretically put anything you want on ADB, but you'd need drivers to do anything but mouse/keyboard, and Wikipedia lists the "actual" bitrate as 10 kbit/s.
It can emulate a floppy or hard drive. I tend to use a 2GB hard drive image which makes hacking on classic Mac a delight.
As I say on the link, you need either a real scsi disk, or, better an scsi emulator, like a SCSI2H https://store.inertialcomputing.com/SCSI2SD-s/100.htm, a RaSCSI https://www.tindie.com/products/landogriffin/rascsi-macintos..., a BlueSCSI https://gumroad.com/l/bluescsi-1b or a MacSD http://macsd.com/
The Mac(s) on the video have a SCSI2HD v5.5, with 4 2Gb partitions on a microsd. I can mount the first partition on my linux to copy stuff onto it (in general via the minivmac emulator).