Review on Smraza Compatible with Raspberry Pi 4 Power Supply: 5.1V 3A USB-C Charger with ON/Off Switch and 60 Degree Rotation - Ideal for Raspberry Pi 4 Model B 1GB / 2GB / 4GB / 8GB Version by Doug Hinrichsen
can actually deliver 3.5A Voltage exceeds 5.4V at low load
This USB-C power supply can easily power a Raspberry Pi 4 (fit) but this one is superior because my electronic USB load tester shows that it can indeed deliver 3.5 amps while maintaining the voltage above 5V (see photo). At lighter loads, i.e. the Pi4 standby voltage is slightly above the USB spec of 5.00 +/- 0.25V as it ramps up to 5.46V. The same voltage also appears on pins 3 and 4 of the RPi's GPIO, so keep this in mind if you have a circuit expect only 5V or less.
- Easy to read control panel
- Somewhat high maintenance
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