A:AnswerHello, All in One devices use notebook RAM due to space limitations. HP recommends Crucial RAM as upgrade options apart from the HP RAM chips. Thank you for being an HP customer!
A:AnswerNot sure I believe the HP response as I have a 27" Envy AIO. I plug in my gaming laptop to use the bigger screen of the Envy. When I do that the Envy just serves as a dual monitor.
It's totally possible. Not sure why they would respond that it is not. After I plug in my laptop I press the HDMI button on the back and voila, 2nd monitor.