HPE Integrated Lights-Out
Integrated Lights-Out (iLO) is a proprietary embedded server management technology by Hewlett Packard Enterprise which provides out-of-band management facilities. The physical connection is an RJ45 port that can be found on most ProLiant servers and microservers of the 300 and above series.
Source: Wikipedia — HPE Integrated Lights-Out (CC BY-SA 4.0)