This is a 1U server rack mountable phone holder. It should work for any phones that are less than 70mm wide and 9mm thick. The phone is held at a 30-degree angle to the mount so that it can face at the printer/subject. This model also has a hole for a charging cable at the bottom of the phone holder.

If you are not sure if your phone will fit, use the slicer and print out a couple of layers only to see if it fits before you do the full dive. 

I have my 3D printers inside of a server rack and wanted a way to use the PrusaConnect Webcam for my MK3S+. Thank you @Wiles for making this a lot easier with your original “1u Rack Support” model. It worked great and was exactly what I needed for this.