The TP-Link POE4818G is a passive PoE injector designed to provide both power and data to network devices that do not have their own power source. It delivers a 48V passive PoE output with a maximum power of 18W, making it a practical choice for powering compatible hardware like the Omada EAP245 V4.0 or EAP650-Outdoor V1.0 access points. Both the data input and the PoE output ports support speeds up to 1000Mbps, ensuring that your gigabit network performance remains consistent across cable lengths of up to 100 meters. This compact device is housed in a white ABS plastic casing measuring 85.8 × 43.9 × 35.0 mm, allowing it to fit discreetly into your setup. It operates on a standard 100~240V AC input and includes a power cord and wall-mounting brackets for flexible installation. A simple PWR LED indicator lets you know at a glance that the unit is receiving power, while the plug-and-play design means you can get your equipment online without needing to configure complex software.