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Power-over-Ethernet eliminates the need for an AC outlet at each end device location. Only a single Ethernet cable is run to each device instead of separate power and data cables. The injector is typically installed near the Ethernet hub and the splitter near the end device for non POE enabled devices in that the unit can be used as either an injector or as a splitter.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.