Dell 34 Inch Ultrawide , WQHD (Wide Quad High Definition), Curved USB-C Monitor (P3421W), 3440 x 1440 at 60Hz, 3800R Curvature, 1.07 Billion Colors, Adjustable, Black

Update: the latest firmware (M2B207 - July 2022) corrects the issues I had experienced with the KVM. My one remaining quibble is the KVM only supports two devices, even though the monitor itself can connect three (HDMI + DisplayPort + USB-C) because there are only two upstream connections (USB-B & USB-C) for devices to access the monitors ports. So if you want to share a keyboard and mouse amongst multiple devices, this monitor can handle two but not three. I rate it 4.5 stars with the latest firmware. ---- The P3421W is my first ultrawide and first curved screen, but I bought it specifically for its built-in KVM. The size is a reasonable replacement for dual screens, though it is still noticeably smaller than two 1080ps, as you might expect based on the resolution. The curve looked strange for about a day and after that I stopped noticing it. What drives me crazy is the KVM. I use it to switch between a Mac and a PC. I do not use the PIP/PBP features (it really isnt big enough for that). But its always a gamble whether switching from one input to the other is going to find a signal, particularly if one machine has just woken from sleep. Switching back and forth between inputs can put the monitor into a state where neither its joystick nor its power button produce any response, and the monitor needs to be unplugged to reboot it. Clearly the monitors firmware is buggy (Ive updated to the latest). Unless this is fixed, I cant give it more than an average rating overall.

Excellent screen for productivity. Replaces 2x my old 22 inch screens and feels much better. Brightness, colors and picture quality is excellent. Looks great on the table.

Love this monitor! Didn’t have the space for 2 monitors and this is perfect. Great quality picture

Fantastic value and features. However, I replaced my original purchase twice via Dell Warranty Claims (claims process is easy, fast, and replacement parts delivered very quickly). All three monitors have had major issues with flickering on the left side of the panel. Replacement monitors have all been refurbs. Im in the process of submitting another warranty claim for screen flickering. Although this could be a great monitor, I would recommend a different option.

The monitor is nice but (a) it is dull (300 nits) which makes it look a bit mushy and (b) it does not have speakers (my fault for not knowing before). I just assumed for over US$700 it would be much better.

The computer monitor has bad power input and flickers when on low brightness / contrast. Absolute waste of money.

The monitor is fine. But when I tried to register it with Dell for warranty support, the Service Tag was invalid. This indicates that the sale of the monitor from Dell to the reseller was never registered. I went around-and-around with several Amazon agents, Dell, and the reseller. The reseller couldnt help me because this order was Fulfilled by Amazon. Dell told me exactly what Amazon need to do, but of the several agents that I was transferred around to, none of them had a clue what I was talking about. Now, I am very suspicious of how this monitor came into Amazons possession. Perhaps that explains why it is so much less expensive here than at other (more reputable?) resellers...?

The monitor aesthetically looks good although its a rather boring design. It doesnt have enough brightness but what bothered me most is that the text is not sharp. I tried changing sharpness, contrast etc. and the text still appeared pixelated. Since I would use it mostly for work this was a deal breaker for me so I had to return it. I may try an ultrasharp monitor instead since Ive always liked Dell products.

Great monitor and the built in KVM allows me to switch between my MacBook and my Dell

So far so good, I use this with the 16” MacBook Pro and have had no issues with the monitor and it doesn’t get hot charging the MacBook. Picture quality seems great but I am primarily using this for large spreadsheets.