Home Assistant OS 15x & Zigbee Server - HP T520 16 GB SSD 4 GB RAM DDR3 4-10 W.,
(PlugNpl ay). It can be equipped with 4 GB of RAM (DDR3, but there's also a slot available, allowing up to 16 GB). The combined performance of the dual-core CPU (1.2 GHz) is higher than that of a Raspberry Pi 4.