Looks to me like the end of a lot of small mining ops.
It is 3 phase power which is more industrial than 240.
I wish specs got released.
10 k-watts and 500th each?
or 18 k-watts and 1 ph each?
Myself, in my fantasy land of rainbows/unicorn farts/faries...in which I 'imagine' I'm a Bitcoin Billionaire..and how I'd approach mining ..the concept of
AntRack would give me a BTC 'woody' indeed.
Not Bitmain, per say, I'm not a fan, but the 'concept'.

Indeed, I can see the brakes being put on 'right now' on any 'expansion' or adding another room or building to folks with big data halls if they are
paying attention to the Bitmain annoucnement. Thus, right now, if I had to expand my mega data hall at 2c kWh or whatever..I'd 'on the get go' add
the permits and connections outlined by the Bitmain protocol above ...and watercooling....which I was told is a whole nother permit process and
hoops to jump through to get in place. But IF I had not already started on the new room/building or expansion..being the 'fantasy' btc billionaire
I am..you could add these changes to your 'expaned' vision to incoroporate antiminer type protocols, easy enough. (I expect ALL major ASIC makers
to adopt this idea of plug and play)
So, being 'smart' btc billionaire (fantasy) and all....I get the units...put in place...they are 'upgradeable' from 5nm to 1nm supposedly...you can
hot swap...I 'assume' you could hot swap different modules for different asic pow algos like ETH,LTC,BTC all in the same rack...etc, etc.
Yeah, this makes too much sense, espcecially if we are looking at t time line of Spring 2021 at best for this stuff and always remember Bitmain
will run AntRacks in mass on their own data halls for 3 months to blow up difficulty before they go out the door to anyone else....
So plenty of time to 'tweak' my expansion plans as a big miner on any buildings or whatever...even if the concept fails and I don't use such
connections and antrack never comes...a small 'tweak' to setup just in caese...or likely, IMHO, that this would be the route a big miner would take.
Alas, I would have been a fine/beneovolent/happy-go lucky/bitcoin billionaire ruler of all your minions on bitcointalk...alas....not to be...

Brad