Made of plastic material, sturdy and durable to use. Conform to international safety product standards and is safe to use. This Non standard passive PoE injector is a simple and convenient equipment for PoE or Non PoE devices via an Ethernet cable. | It does not have auto detection function and directly supply power to the network devices by force as soon as you connect them, powered device or poe splitter must conform to standard IEEE 802.3af/at, the same time your powered device must support poe pin 4/5(+), 7/8(-) midspan. | This PoE injector is compatible with IEEE802.3af/at network devices. Apply for IEEE802.3af/at standard POE powered devices like DAHUA, HIKVISION and other brands IP cameras, or being equipped together with IEEE802.3af/802.3at standard poe splitter for non POE devices. | Please select according your device power consumption, in order to ensure stable running, the total power consumption must be lower than the total power supply.Tip: the power voltage should not be over DC48V. | Please select according your device power consumption, in order to ensure stable running, the total power consumption must be lower than the total power supply.Tip: the power voltage should not be over DC48V.