The Plug and Play (PnP) feature allows you to set up a video surveillance transmission network by only powering on the RG-ES100 Series switches and correctly connecting the switches to IP cameras and digital video recorders (DVRs). If the Ruijie Cloud management platform is available, you can add the RG-ES100 Series to the topology manually or by scanning the QR code to conveniently output a complete topology. The RG-ES100 Series is composed of key components selected based on strict requirements, such as the power supply, capacitors, and resistors. In addition, specifications related to lightning protection of the power supply, surge protection of ports, and lifespans of capacitors and resistors are strictly controlled and tested to provide reliable and easy-to-use products for customers. The RG-ES100 Series provides up to 6 kV lightning protection for ports of PoE switches, and up to 4 kV lightning protection for ports of non-PoE switches. The high-standard lightning protection design can reduce the probability of port damage caused by lightening surge and improve stability of customer networks. Based on characteristics of video transmission, the RG-ES100 Series employs a large cache to properly handle traffic bursts in video surveillance and avoid video freezing. The RG-ES100 Series unmanaged switches support switching among the flow control, port isolation, and normal modes, and support smart PoE and PoE+.