AP R720 - Power options. Using PoE (802.3af) or PoE+ (802.3at) power options - Data sheet indicates 2nd Ethernet port & USB disable. R720 has two ethernet port options: One 2.5Gbps Ethernet port and one 1Gbps Ethernet port . Which one is disabled or can that be the users choice?
In the case of the AP running in low-power mode; it will be the 1Gbps Ethernet port that is disabled, as low-power mode relates to PoE and only the 2.5Gbps port is PoE enabled.
Please note the 2.5Gbps port can run at 1Gbps speed.