MA 01772 is the State (Massachusetts) and the zip code (01772)... so those aren’t going to help a lot in tracking down the right documentation.
It looks like you probably have an older version of this (Dell AX Series SAN Array)...
I’m not 100% from the picture, but those are probably gigabit ethernet ports that you included in the photo of the back.
There should be a model number somewhere on there (it looks like it might be right below the word “Dell” on the front, but I can’t make it out), and maybe even a service tag that you can enter on the dell support website. If not, they also let you select by product line and model number. That should get you all the documentation that came with it originally as a PDF so you can go from there.
It’s not exactly set up for home use, but may be worth a bit since it still represents a good amount of storage. You could probably buy something more intended for your needs, unless you’re setting up a data center of some sort.
Where’d you get it?