“Simple but very useful accessory to have on standby for when you need to connect your pi to a display for setup. More versatile than buying a cable too.”
“Take note of "It may not work well with smartphones or other Micro-USB chargers/power supplies" in the description. No idea where the blame lies but it just didn't work with the charger I was trying to use (not an official one) into a 4B. Swapped to a different charger (still not an official one) and all was good.”