While awaiting a possible customer response, you should also post the question on the Apple Forum and ask other Apple users how they are using the Dell U3415W with the 2017 MacBook Pro.

OK monitor arrived and looks great. However, it is not working as a hub. When I connect a USB drive to the rear it does not show on my Mac Book. How do I do this? I am connected via USB-C from the Mac though a USB-C/HDMI adapter to HDMI on the monitor.

I'm assuming that HDMI does not carry data back to the Mac. Am I right? Is it possible to have one cable that from Mac to monitor and then use monitor as hub?

Glad that the USB-C to HDMI is working. As the U3415W User's Manual pages 6, 9, and 11 show, to use the U3415W USB hub and USB Downstream ports, you must connect the USB Upstream cable to the U3415W Upstream port and the other end into the computer USB port.

Hmmm. Surely it's possible if I buy a usb-c adapter or hub which has the appropriate USB-out which I can connect the USB upstream cable to?

Unknown. You will simply have to test one. As you can see from the User's Manual, we only test directly to the computer USB port.

Hi Simon,

Thanks for your post.

How do you like the Dell U3415W you purchased to go with your 2017 MacBook Pro? Are the display quality and resolution comparable to the Apple iMacs? How about the text? And finally, what cable are you using to connect the two? Thanks for your help.