20W 5V 4A Power Supply With ON/OFF Switch It's convenient for you to power on and power off your Raspberry Pi 4. raspberry pi adapter is a versatile choice for a replacement charger or backup option. It also comes with a on/off switch, so it can turn off/on your Pi without plugging everytime. Raspberry Pi adapter is optimized for energy efficiency and safety and meets top industry standards.

Compatible with: Raspberry Pi 4 Model B 8GB/4GB/2GB/1GB, Orange Pi 5/5B/4B, Orange Pi 5 plus，Orange Pi 800, Orange Pi 4 LTS, Orange Pi 3 LTS, Orange Pi Zero2, Orange Pi R1 Plus LTS,Orange Pi 3B and Orange Pi Zero 3, also support Raspberry Pi 4 Model B.

Compatible with: support NASPi/DACPi/X-C1/X825/X735/X728/X708/X703 expansion board/Retroflag PiStation Case/Orange Pi 5/5B/Orange Pi 5 Plus.

After repeated testing to provide the highest power stability High quality copper wire core, good conductivity, stable transmission, Inline Noise Filter.

Multi-Protection Functions;

Over voltage protection;

Under voltage protection;

Over temperature protection;

Over current protection;

Short circuit protection.