![Amazon.com: HCDC RPi GPIO Status LED & Terminal Block Breakout Board HAT for Raspberry Pi A+ 3A+ B+ 2B 3B 3B+ 4B : Electronics Amazon.com: HCDC RPi GPIO Status LED & Terminal Block Breakout Board HAT for Raspberry Pi A+ 3A+ B+ 2B 3B 3B+ 4B : Electronics](https://m.media-amazon.com/images/I/81qX5HPfs6L._SX342_.jpg)
Amazon.com: HCDC RPi GPIO Status LED & Terminal Block Breakout Board HAT for Raspberry Pi A+ 3A+ B+ 2B 3B 3B+ 4B : Electronics
![Green LED Cooling Fan Module GPIO Expansion Board for Raspberry Pi 4 Model B / 3 Sale - Banggood USA sold out-arrival notice-arrival notice Green LED Cooling Fan Module GPIO Expansion Board for Raspberry Pi 4 Model B / 3 Sale - Banggood USA sold out-arrival notice-arrival notice](https://imgaz3.staticbg.com/thumb/large/oaupload/ser1/banggood/images/EC/7C/8d821404-e97f-45af-b489-935143b229ba.png)
Green LED Cooling Fan Module GPIO Expansion Board for Raspberry Pi 4 Model B / 3 Sale - Banggood USA sold out-arrival notice-arrival notice
![Help, does anyone know what's the problem here? Green light blinks four times at start then only get a solid red after, preloaded with noobs in sd card : r/RASPBERRY_PI_PROJECTS Help, does anyone know what's the problem here? Green light blinks four times at start then only get a solid red after, preloaded with noobs in sd card : r/RASPBERRY_PI_PROJECTS](https://external-preview.redd.it/2XHsKRp6Er-ObDxbYCAy4QsgffNrUyEcjGZilZOQo74.png?format=pjpg&auto=webp&s=d38e081c9dcd3384d3e39f082fdcd722f333dd46)