What is the function of AC power micro usb connector

Hi Everyone,

We installed a new C7000 enclosure recendly.

I have a question. What can HPQ P/N: 675180-001 do? ( figure micro-usb-675180-001 )

and what is the function of AC connector's micro usb port ? ( AC-inpub-micro-usb-port )

micro-usb-675180-001AC-inpub-micro-usb-port

Thanks for your reading.