The product is unfortunately on sale and can therefore no longer be offered by us.

A power cable is included. I needed HDMI, which had to be bought separately. I can no longer say whether another cable was included.

In order to use the USB ports, a separate USB cable from the monitor to the PC is still necessary.

Adjusing brightness is always possible,although I advise to get a monitor with a higher resolution. 1920 x 1080 is not optimal for text because there are not enough pixels to display smaller fonts sharp enough. Small fonts appear pixelated. 2560x1440 gives you a much clearer and sharper text. This monitor does cost a bit more, but text is much sharper on it. Lenovo PCG S24q 23.8 inch WLED HDMI, DP (2560 x 1440 Pixels, 23.80 ")

A screen can't be incompatible, as long as you have the correct ports (hdmi/display port), it'll be compatible.

Connection of two computers so that only 1 monitor is needed. You can then switch between the two computers at the touch of a button.

This is indeed an error, this product has a resolution of 1920 x 1080. We have reported the error and it should be corrected as soon as possible.

This will be an "ordinary" mains cable, which is included in the scope of delivery. Power supply: AC 100~240 V Power cable length: 1.5 m https://www.samsung.com/at/business/monitors/business/fhd-monitor-t45f-lf24t450fqrxen/