Reddit mentions of APC NET9RMBLK Rackmount SurgeArrest 9-Outlet/1700 Joules/120V Surge Protector

For sure,

The Case is made by Marathon, it's an 8U Case that's only 14" deep because I needed the portability of a shorter case. Link to Case on B&H Photo

Front of the Unit

From top to bottom, we have a 9 port surge protector (The Surge Protector came with what I can only describe as a 15 foot cable which is fantastic, apologies for the Canadian Link as well), Blank Grille for cooling, Sonnet Mac Rack Mini (Two fully functional USB Charging ports on the front which can charge an iPad or iPhone, houses a 2012 Mac Mini refurb, Server is running with a 480GB SSD, 8GB of RAM, on the right side where another Mac Mini could go I routed the power cable and there is a 500GB USB 3 HDD Backup Drive, there is also redundant ethernet lines being run (one main to the computer and one backup via a Thunderbolt to Ethernet Adapter)), 1U Tray with Slots, 1U Tray (Sprayed with a rubber paint to make it non-stick), and a 2U Drawer which houses a cash tray.

The Blank Grille houses a TP-Link 8 port switch (as, for me, a 16-port switch would've been overkill as I only have 3-4 devices outside of the box that may need to be connected at any point in time). It also houses an older model of Apple Airport Extreme (this was simply because of convenience for me as I had it lying around and it fit in the space. If I wanted to throw more money at this box to get some newer products, I would've placed a new airport express (The smaller one that is the size of an Apple TV).

Only other thing that you can't see in the picture is a 6U Blank Grille on the back which is on a hinge (Hides the cabling when onsite and keeps it clean in the case that it has to face the customer, but provides airflow.

Essentially, if I understand your classroom-in-a-box solution, you need something that could house and power all the laptops, and possibly do networking as well. If that was the case, they make rolling versions of these boxes.... If the school you're working in didn't have wireless, but did have Ethernet, you can mark a location on the switch for the teacher the plug into the network. Then it's a matter of figuring out shelving, wiring and which wireless box you'd want to go with to keep everything clean. Simply have one or two power cables coming out of the unit when everything needs to charge up and you'd be good to go (If you are housing the computer... as I re-read your comment, it appears that these might be laptops that the students bring from home).

Hopefully that helps describe everything. Sorry for the wall of text.