Review on 🔳 GeeekPi Raspberry Pi Cluster Case Stackable Rack Case with 120mm RGB LED Cooling Fan 5V for Raspberry Pi 4B/3B+/3B/2B/B+ and Jetson Nano (12-Layers) by John Anaya

I have over 50+ RPi so I'm not a newbie. The SD-side adapter contains hardware that makes the SD card accessible from the ETH0 side, causing the RPi kernel to panic on EVERY boot. I don't even get the RPi's "BIOS Screen". I've tried RPiOS, Ubuntu and about 3 other distros. I've tried more than 5 SD cards to make sure it's not a card. I don't want to boot from USB for various reasons. I also tried each of the 12 adapters to make sure it worked. I removed the adapter and all RPi and OS boots fine. The rack is really useless without a working adapter, as you have to disassemble the entire rack (at least an hour) to swap the SD cards if necessary. I don't think I have a batch of 12 defective adapters, so that's definitely a problem. Don't buy until you see the problem is solved. So sad it didn't work as I really loved the cluster, it's a great design and can be a GREAT product if SUPPORT is listening and can help!