Background
The IEEE 802.3af standard limits the maximum current on an Ethernet cable to 350Ma. This provides for a maximum end-point power consumption of 12.95 Watts, which is fine for some devices. But many professional networking devices require more power.

Introducting the ultimate solution for high-power PoE
LevelOne POI-4000(-Z) is a high power, PSE Power Injector for use in Power over Ethernet systems. With Ethernet Input (data only) port and Output (data power) port, POI-4000(-Z) delivers up to 40 Watts over Cat.5/6/7. This provides excellent support for PD devices such as PoE IP surveillance, outdoor access points or PoE VoIP telephones.

Maximize your PoE network
POI-4000(-Z) can work with PoE PD devices to extend the PoE network several hundred meters. This unbeatable solution is available only from LevelOne! It brings long distances with no latency or loss of network speed.