Review on Dell P2721Q Ultra Thin DisplayPort Certified 4K 3840x2160P Monitor with 🖥️ Flicker-Free Technology and Multi-Adjustment Stand, USB-C Connectivity - Dell 27 4K Monitor by Everson Schiller

Compared to other monitors in the same price range, this monitor has some surprisingly bad designs that I didn't expect (and therefore didn't pay attention to) 1) This monitor doesn't have a headphone output, although the Dell UltraSharp I bought 5 years ago is back. This is very inconvenient if you use it for 2 computers and use the headphones for meetings and entertainment. 2) The USB-C port behaves strangely: other USB inputs are connected to a USB-C connected laptop even if the input source is selected as DisplayPort (my desktop). 3) The monitor rotates but cannot be adjusted to vertical position! Who would have thought? 4) The viewing angle of this monitor is narrow and the edge of the monitor appears gray at the standard distance from the table. I definitely do not recommend buying this monitor.