I can't comment on the drive itself, but Super 5 was a big manufacturer of third party floppy drives for Apples (both Macs and Apple IIs) in the 1980s. I used to have a Super 5 5.25" drive, which also had a metal enclosure and connected to a Disk II card. I'm not sure if they made a UniDisk 5.25" compatible drive, but I can verify the existence of the Disk II compatible drive. Mine died and has since gone to the recycler.