On &Charge we see pictures of the location, including a closeup of the 2022 price sheet:
Aktuelle Preise ab 1. Januar 2022
Ladung an dieser Ladestation: <40kW
MOVE-Karte der Energie Uster: 35 Rp./kWh + Aktivierungsgebühr je Ladevorgang: 1.50CHF
Andere Karten: siehe aktuelle Preisliste under www.move.ch
We also see the screen, which lists 43kW AC and 20kW DC. The AC cable in the pictures indeed looks like the 43kW-capable variant.
It seems like they painted 4 parking spaces green, which doesn't make sense as you can only plug 3 cars and only 2 can charge at once.
In the pictures we see ticket gates in the background, which maybe explain why there are more spots than necessary, maybe one of the 2 rows is not blocked by gates.
The description says the chargers are usually used by employees, and the entire parking might be the employee/visitor parking for the business.