The Dray Tek POEINj 1 is a Fast Ethernet Po E injector that is ideal if you need power for just one or two devices, you can use a single Po E injector to add Po E to one Ethernet network cable/device. Compared to a large Po E switch, a Po E injector is more economonical if you need only a small number of Po E devices in a particular location as it is mains powered & inserts Po E into the Ethernet cable. With the Dray Tek Po E Injector POEINJ1, both power & data can be transmitted up to 328 feet (100m) using standard CAT5e Ethernet cabling with virtually no reduction in data throughput. Use the Dray Tek Po E Injector with Ethernet-enabled devices where power outlets are not readily available.