Is DELL P2725QE compatible with the Mac Mini with M4?

Yes, It should work through the HDMI port directly without issue.

If you want to use the Display Port 1.4 port on the monitor, you will need an adapter. For example:

click here ➜ UGREEN USB C to DisplayPort 1.4 Cable 8K@60Hz 4K@240Hz Unidirectional Thunderbolt 4/3 to DisplayPort Cord USB C to DP 32.4Gbps Compatible iPhone 16, MacBook Pro/Air, iPad, Mac Mini - Amazon.com

Also, remember you will need to connect the monitor's upstream USB-C port to one of the Mac Mini's USB-C ports to enable the downstream USB-C ports and ethernet port on the monitor.

Yes, however the M4 Mac mini's are very cable and adapter picky. Plus a lot of folks are having problems with the cheap poorly shielded manufacture supplied cables.

Instead of using a USB-C to DisplayPort adapter and the Dells supplied DisplayPort cable. Like Phil0124 suggest's, I also recommend getting and using a short 8K USB-C to DisplayPort 1.4 high speed cable.

for example: https://www.amazon.com/dp/B0BXLDJV3Y/ref=sspa_dk_detail_3?

Or optionally, a short high speed certified 8K 2.1 HDMI cable if you want to use the mac mini's HDMI port.

for example: https://www.amazon.com/dp/B08M9HND4F/ref=sspa_dk_detail_0?

rarmellini wrote:

Thanks a lot for your quick reply. Is there any pros/cons using HDMI over DisplayPort?

Not really. You can use either one for 4K resolution and the 100Hz refresh rate supported by the display.

You're welcome.

HDMI only supports audio out to monitors and displays with built-in speakers.

I do not have that monitor and sound bar to test. But it looks like you will also need a USB-C cable in addition to an HDMI cable to make that conferencing soundbar work.

The sound bar seems to connect to one of the ports on the display,. so the USB-C connection from he Mac mini to the monitor should enable it.

Not sure the HDMI connection alone would enable it though, but it's easy enough to test.