Amazon.com: DIGISHUO Raspberry Pi 3 Model B Board 1G Ram 400MHz Wireless LAN and Bluetooth 3B+ Version (Raspberry Pi 3B Module) : Electronics
Amazon.com: RasTech Raspberry Pi Compute Module 4 2GB RAM 16GB eMMC Single Board (CM4002016) 64-Bit 1.5GHZ Quad-Core Processor Bluetooth 5.0 No Wi-Fi for Networked Ai Core and More (Raspberry Pi Official Genuine) :