Many of the 3rd-party Raspberry Pi power adapters are only offering 5V 3A (sometimes 2.5A), and if they are cheap, quite often they cannot even meet what they claim. While the old official 3 power adapter is also 5.1V 3A, unfortunately Pi 4 goes with USB-C this time for Pi 4.
A power adapter with insufficient power supply will either not providing enough power for the components or corrupt the microSD card contents.
As an opensource lover, we are proud to bring the official Raspberry Pi 4 power adapters to the Canadian market, currently available on Amazon.ca.