Short Description (English): The HRUI HR-AFR-21+ is a compact, plug-and-play PoE Extender (also called PoE Repeater or PoE Relay Extender) designed to extend both Ethernet data and PoE power over standard Cat5e/Cat6 cables beyond the usual 100-meter limit. Key features: Ports: 1 × 100Mbps PoE Input (RJ45) + 2 × 100Mbps PoE Output (RJ45) ports Extension distance: Up to 250 meters in Extend mode (activated by a one-click button/switch); normal mode is 100m Speed in Extend mode: Drops to 10Mbps per port for longer distances (still sufficient for most IP cameras, VoIP phones, etc.) PoE support: IEEE 802.3af/at compliant (up to 30W per port, total PoE budget ~25W) Power supply: Powered via PoE input (no separate adapter needed) Other specs: Auto MDI/MDIX, flow control, surge protection (4KV common mode), operating temp 0–40°C, compact plastic case (100×49×25 mm) Ideal for: CCTV/IP camera installations, wireless access points, or any PoE devices where running new power cables is impractical or expensive