The monitor has a USB-C port that supports DisplayPort Alt Mode and can therefore be connected directly to a MacBook Air to transfer video, audio and data as well as to charge the device. It is not necessary to use an HDMI connection when using the USB-C port. The monitor offers a power delivery of up to 65 watts, which is enough to charge most laptops or extend battery life.

Dell's "S2722QC" monitor is not specifically tested or supported for macOS systems, which means there may be issues connecting to a current Mac Mini. There are reports of connection issues via USB-C while HDMI connections work. If you want to use the monitor with a Mac Mini, you could possibly fall back to HDMI or consider alternative monitors that are explicitly macOS compatible.

I have connected two of them to a PC that has two outputs on the graphics card. Very good quality. Daisy chain is not possible.

The front is black, blacker is not possible. The base is silver, the back is white, but not pure white.

No. Cable, 220V plug, ready