We found NB I/O ports will get very dirty after using NB for years especially business
man. They don't need to wait for years, I/O port becomes very dirty inside, this is due
to using NB out of office, and placing NB in suitcase/ backpack.
Creative Commons License
This work is licensed under a Creative Commons Attribution-Share Alike 4.0 License.
INC, HP, "NOTEBOOK COMPUTER I/O PORTS LID", Technical Disclosure Commons, (November 20, 2018)