Yes, it is possible to connect a second monitor to the HP EliteOne AIO 870 G9, but there are some restrictions and requirements to consider:
- The HP EliteOne AIO 870 G9 has a DisplayPort connector that you can use to connect an external monitor. However, if your monitor only has HDMI inputs, you will need an HDMI to DisplayPort adapter. - The HDMI port on the HP EliteOne AIO 870 G9 is an HDMI input and cannot be used to connect an external monitor. It is used to use the All-In-One as a screen for other devices such as games consoles or laptops. - Another option is to use a USB display adapter, which is connected to a USB port and then connects the external monitor with a VGA, HDMI or DisplayPort cable.
Make sure that all connections and hardware are undamaged and that the software is up to date to ensure a smooth connection.