Review on 🔌 SunFounder Raspberry Pi RAB Holder Breadboard Kit with 830 Points – Solderless Circuit Board & Raspberry Pi Holder for Arduino R3, Mega 2560 + Raspberry Pi 4B, 3B+, 3 Model B, 2 Model B, 1 Model B+ by Jose Ballard

This mockup holder is just great! I like the versatility of mounting Pi, Uno or Mega 2650 boards as well as full or half size breadboards. I've made similar mock-up mounts myself, but for the price and mounting precision, you can't beat them. My only wish and I will mention this sunfounder is that I need a similar one to install Uno and Mega 2650 as I often start a project on Uno that runs out of memory and then need to transfer it to 2650 I found, that I can mount the Uno on the left side where the Pi would normally be mounted and the two holes on the Uno line up so that might be enough for my needs. Still, it's a fantastic device for prototyping projects on Pi and Aurduinos, especially when interacting with Pi and Arduino boards.