MP8020 Power Over Ethernet (PoE) Powered Device Monolithic Power Systems (MPS) MP8020 Power Over Ethernet Powered Device is an IEEE 802.3af/at/bt compliant, Power over Ethernet (PoE) powered device (PD). The device supports all the functions of IEEE 802.3af/at/bt, including detection, 5-event classification, input current (IIN) control, and an internal 100V hot-swap MOSFET.