What is the nhi event source and its event id 1 in the Microsoft windows system event log?

On a Dell Precision 7720 laptop running Microsoft Windows 10, Version 20H2, OS Build 19042.867, I see the following event showing up in the Windows System event log:

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="nhi" /> 
    <EventID Qualifiers="16384">1</EventID> 
    <Version>0</Version> 
    <Level>4</Level> 
    <Task>0</Task> 
    <Opcode>0</Opcode> 
    <Keywords>0x80000000000000</Keywords> 
    <TimeCreated SystemTime="2021-03-24T09:48:49.4168316Z" /> 
    <EventRecordID>143446</EventRecordID> 
    <Correlation /> 
    <Execution ProcessID="4" ThreadID="22492" /> 
    <Channel>System</Channel> 
    <Computer>Precision-7720</Computer> 
    <Security /> 
  </System>
  <EventData>
    <Data /> 
    <Binary>00000000010000000000000001000040000000000000000000000000000000000000000000000000</Binary> 
  </EventData>
</Event>

I see that the process that is causing this event is the System process (ProcessID 4). I am wondering which provider / component is causing this event and what event id 1 for this source means.

NHI is Native Host Interface. I would suggest that it is related to the thunderbolt driver for your Dell. Make sure all your drivers are up to date and you are running the latest BIOS.