Ben Zanin on Nostr: for the other end of this power supply, the IKEA SJÖSS 45W USP-PD power supply¹ ...

for the other end of this power supply, the IKEA SJÖSS 45W USP-PD power supply¹ specifically supports 15V/3A, apparently hits about 90% conversion efficiency with a load as low as 10% (!!!), has an impressively low idle power draw, and costs $18 Canadian

¹: https://www.ikea.com/ca/en/p/sjoess-45w-2-port-usb-charger-fast-charging-10574470/