An outdoor customer premises equipment (CPE) is disclosed. The out door CPE may include: a main body which includes a printed circuit board (PCB), a heat sink, a heater assembly, a SIM card holder, a radio frequency (RF) cable and a fifth generation (5G) communication module; and an antenna module which is detachably connected to the main body and includes a cable interface connected to the RF cable, where the antenna module is a high-gain antenna module or a low-gain antenna module.