12-48V DC Input: The switch support 12-48V DC Input and boost to 48V output. It solve the problem that you only have 12V or 24V centralized power supply or solar power supply. And also support Redundant power. High strength protection,Power surge protection, network port surge protection, anti-electromagnetic interference high-strength aluminum alloy shell, IP40 protection to prevent external damage, to the equipment works normally and stably 24 hours a day. Adapt to harsh environments,-40 to +80 wide operating temperature, adapt to various harsh environments, reliable operation, simple operation, anti-vibration, impact, industrial-grade -protection, anti-static design to meet diverse needs, always stable transmission, communication does not , fanless natural heat dissipation design, no need for additional heat dissipation and cooling equipment. Easy installation,The device is equipped with rail clips, supports wall mounting and standard 35mm rail mounting, meeting the installation requirements of different occasions and environments.Make installation and use more convenient. Product name:10-port unmanaged industrial-grade DIN-rail Ethernet switch interface:10 10/100/1000M network ports Installation method:Guide rail installation, wall installation Shell material:High-strength aluminum alloy metal housing, IP40 protection grade working environment:Working temperature -40 to 80, Storage temperature -40 to 85, Relative humidity 5% to 95% Colour:As Shown Material:aluminium alloy Package Contents: 1 * PoE Gigabit Ethernet Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.