A room full of laptops during an all-day training session puts a very different load on the electrical circuit than a normal office desk setup - a dozen laptop chargers plugging into the same wall outlets at once can trip a circuit breaker in older buildings not wired for that concentrated a load, since a standard 15A residential circuit is rated for roughly 1,800W total, and a dozen 65W laptop chargers alone already approach 800W before phones and other devices are added.
Multi-port USB-PD wall chargers reduce the number of individual power bricks plugged into a power strip, since one 100W+ charger with 4 ports replaces four separate single-port bricks - fewer physical plugs sharing the same outlet strip also means less risk of overloading a single strip's own internal fuse, which is usually rated lower than the wall circuit itself.
A practical setup for a recurring training room is a small number of fixed multi-port charging stations mounted near seating rather than one power strip snaking across the floor - it removes a trip hazard and spreads the electrical load across multiple wall circuits rather than concentrating it on one.
CairoVolt's USB wall chargers page lists current multi-port options by real combined wattage for exactly this kind of shared-room setup.
