The HPE P13849-201 is a 180 W AC power adapter for HPE MicroServer systems. HPE PartSurfer identifies this exact part number as a LiteOn power supply for the MicroServer Gen10 Plus; a distributor lists it for the MicroServer Gen10.
It provides a rated output of 19.5 V and 9.23 A. The 7.4 × 5.0 mm output connector and IEC 320 C5 power cable connector help identify the required connections.
Use it as an external power source for a supported HPE MicroServer configuration. This is a server power adapter, not a general-purpose laptop charger.