This is a Passive PoE Injector (or Splitter), you need an extra 5.5 2.1mm DC port Power adapter if you need it works as a Injector. 10pcs Passive PoE Injector/ Splitter. As a Injector, the "PoE" out port is an 802.3af,but it does NOT include the 802.3af compliant detection feature.
