after-sales service? Every PoE switch is rigorously tested for reliability, quality, and performance. We supply a year warranty for whole products and lifetime technical support. Unmanaged Switch?support power detection function, automatic detection of PD devices, compatible with non-POE devices to provide data connection, no software or configuration required, support automatic MDI/MDIX and non-blocking data forwarding. VLAN and Extender? When Extender mode is enabled, 1-8 ports are isolated from each other but communicate with the uplink port to improve network security. And the network cable extension function is enabled at the same time. Maximum support 250m network cable connection. It is convenient to build monitoring system for outdoor. (But the network speed will be reduced to 10Mbps when Extender function is enabled). Outdoor Waterproof Design?IP65 protection grade, with 4KV lightning protection design, can be used in harsh outdoor environment -10? to +55? (14? to 131?). Outside 10 Port PoE Switch?Includes 8x 10/100 Mbps PoE ports and 2 Gigabit uplink. PoE port supports IEEE 802.3af/at and delivers up to 30 W of power per port for a total PoE power budget of 78 W.(please Note: Only 48V POE devices are supported).Uplink ports can provide more bandwidth and connect different devices such as routers, NVRs, etc.