The is a 5G indoor CPE (Customer Premises Equipment) – a router that connects to a 5G/4G mobile network and provides Wi-Fi and LAN internet. Commonly used by mobile carriers (e.g., Three UK, Optus, T-Mobile, etc.) for fixed wireless access.

Some users solder U.FL to SMA pigtails directly onto the PCB’s 4 antenna pads to get 4×4 external MIMO. This: