The blue and beige box the AOC U2790PPQU comes in is a bit pedestrian considering that there's a 4K monitor contained within.
There's a comprehensive set of cables inside, including HDMI, DisplayPort, USB 3 upstream and analog audio alongside the usual power kettle lead.
There's nothing cheap at all about the way this screen looks. In fact, we'd argue that it's decidedly classy. The invisible bezels on top, left and right combined with the dark grey brushed metal body provides a quality look, and the round base with cable tidy hole in the rear arm is sleek and unfussy.
The range of adjustments is comprehensive. You can raise and lower the screen by 130mm, and swivel it 45 degrees in either direction around its base. It can be tilted 3.5 degrees forward or 19.5 degrees backwards. You can also rotate the whole screen by 90 degrees into portrait mode, which might please those working on page layouts or portrait photography.
The video ports point downwards, and include two HDMI plus DisplayPort. However, the HDMI ports aren't identical – one supports 1.4, and the other 2.0, but there is no clear indication which is which, forcing you to consult documentation. The DisplayPort supports the 1.2 standard. Further along can be found the headphone minijack.
The USB ports sit on the back, facing outwards, which makes them a little easier to access, although having the upstream at the top will mean the wire could get in the way. We'd also still prefer to see these on the side for maximum accessibility.
The menu is operated entirely with a joystick on the right-hand rear of the monitor.