The PLANET POE-400 is a 4-Port IEEE 802.3af Power over Ethernet injector hub complied with IEEE 802.3, IEEE 802.3u and IEEE 802.3af standards. Equipped with 4 10/100Base-TX Fast Ethernet ports, the POE-400 supports full 48VDC power for any remote IEEE 802.3af powered device (PD) like Wireless LAN Access Point, IP phone, and LAN Camera. Supporting power supply of 70 watts, the POE-400 provides sufficient power to the 4 remote devices.

There are 8 RJ-45 STP ports on POE-400. Half of the ports on right panel function as "Data" and the other half on left panel function as "Data and Power". Each of the "Data and Power" port is an injector which inserts DC Voltage into the CAT 5 cable for allowing having the cable between the Injector and Splitter to transfer data and power simultaneously.