Assuming it is an external data storage unit or hard drive. Could not do any further testing without compatible hardware. Could not find any additional information on the unit.
There are no Apple/Mac markings on it, but it is the same color/construction of vintage apple laptops. The item "Apple Datapack RARE Vintage Macintosh Mac External Hard Drive + Power Data Pack" is in sale since Monday, April 19, 2021.
This item is in the category "Computers/Tablets & Networking\Drives, Storage & Blank Media\Hard Drives (HDD, SSD & NAS)\External Hard Disk Drives". The seller is "bactriancamels22" and is located in Tucson, Arizona. This item can be shipped worldwide.