https://www.ebay.de/itm/165635763325 https://github.com/boosterl/awesome-mango-pi-mq-pro#os-images The Mango Pi Quat has a H616 4-Core Cortex-A53 ARM CPU: https://www.electronics-lab.com/new-mangopi-mq-quad-sbc-comes-with-an-allwinner-h616-processor-and-a-rpi-zero-w-form-factor/ Debian is recommended as an image: https://mangopi.org/mqquad https://jamesachambers.com/mango-pi-mq-quad-sbc-review/