4PoE Gigabit PortsSupports IEEE 802.3 af/at up to 30W per port, ideal for powering IP cameras, APs, and industrial terminals ^^ Wide 48-57V DC Redundant InputEnsures stable, uninterrupted operation in demanding industrial power environments ^^ Rugged IP40 Aluminum HousingFanless, dust-resistant, and vibration-tolerant for long-term reliability ^^ Extreme -40~85 OperationGuaranteed stable performance in harsh outdoor and factory environments ^^ Industrial-Grade EMC Protection15kV air/8kV contact ESD and enhanced surge immunity for reliable data transmission