Smart Cooling Hat For Raspberry Pi 4B SF_Power Charger Audio part of the A/V

Audio part of the A/V jack is the same

9 mA Accuracy ±5% of full scale

another five GPIO pins (including two usable as PWM outputs) can be accessed along the bottom edge of the board

Micro Maestro — partial kit

Smart Cooling Hat For Raspberry Pi 4B SF_Power Charger Audio part of the A/VThis is a multi function cooling expansion board specifically designed for Raspberry Pi . It provides full compatibility with Raspberry Pi 4B 3B+ 3B to protect the Raspberry Pi board and extends its lifespan. There is a large size cooling fan on the board with strong wind power that can make Raspberry Pi run more stably by automatically adjusting its speed according to the CPU temperature. Three high brightness RGB programming LEDs on the bottom of