8-Port RJ-45: 4-Port 10/100/1000Mbps “Data input”, 4-Port 10/100/1000Mbps “Data + Power output”. Complies with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab 10/100/1000Base-T Ethernet standard. IEEE 802.3at and IEEE 802.3af Power over Ethernet Mid-Span PSE. Provides DC 52V power over RJ-45 Ethernet cable to IEEE 802.3at / 802.3af compliant devices ( up to 4 PD devices). PoE power up to 30.8 watts (802.3at PoE) / 15.4 watts (802.3af PoE) for each PoE port. Remote power feeding up to 100m. Full power support for each PoE port. Automatically detects the powered device (PD). Circuit protection prevents power interference between ports. 100~240V AC, 50/60Hz, 2A universal power supply adapter with DC 52V / 2.31A power output.