Product Description POE 1000M Network Surge Protector POE 1000M Monitor Camera Surge Protector RJ45 Gigabit Ethernet Protection Device Lightning Arrester 1000M RJ45 Ethernet Cat5e/6 Surge Protector with POE Support. It easily installs in-line on an RJ45 Cat5e/6 cable. The lightning arrester features two RJ45 female connectors, making in-line installation simple and straightforward. It protects all Ethernet devices such as switches, routers, laptops/PCs, IP cameras, etc., from damaging surges caused by lightning or static electricity. Furthermore, thanks to the PoE function, it ALLOWS PoE-enabled devices to remain powered while being protected from damaging lightning strikes or voltage spikes. Material: Plastic + Metal Color: As shown Features: Fast energy absorption during surges Low resistance and minimal capacitance – minimal impact on data link Easy in-line installation: two RJ45 female connectors Specification: Product Name: Gigabit POE Network Surge Protector Protection Object: POE network switch, POE camera, terminal with POE power supply function Interface: RJ45 Response Time: Less than 1ns Rated Operating Voltage: 48V Transmission Rate: 1000Mbps Continuous Operating Voltage: 57V Working Temperature: -30 ~ 70 degrees Celsius Working Humidity: 30%-90% Note: Two things are crucial and should NOT be missed when using the Ethernet surge protector. Correct Positioning: The IN socket connects to the unprotected part of the cable, and the OUT socket connects to the protected side of the cable. Reversed installation will still allow network traffic and operation, but there will be no lightning/surge protection at all. Proper Grounding: Please pay attention to the yellow/green ground wire. This wire MUST be connected to proper electrical ground in the building. Consult a qualified electrician for such grounding or search online for information. Without proper grounding, the surge protector will be unable to drain the surge and will be ineffective. Package Contents: 1 x POE Network Surge Protector Device 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 to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.