Designed to a minimal size for integrating into other prints. Excuse the bridging quality in my photos!!

I printed in ABS and so printing in other materials might introduce slightly more tolerance, but still good fitment. 

I have used plenty of USB and RJ45 Network points in this keystone.

Example RJ45: this one is useful when you have minimal space like in a v0 https://www.aliexpress.com/item/32895772707.html

Example USB C: https://www.aliexpress.com/item/1005003166887173.html

Example USB 3: https://www.aliexpress.com/item/1005004841731512.html 

Instructions

Either integrate the STEP model into your CAD or use the STL in your slicer.

To integrate directly in a slicer you will need a slicer that can add negative objects to an existing shape. 

1. Import the model you want to have the keystone
2. Load the Keystone Hole as a Negative Volume in the volume you want it in (if you need a hole in your object). 
3. Import the Keystone and line it up with the negative volume. 
   • The negative volume is bigger than the hole in the keystone to ensure the cutout works, but make sure you line it up as close to the thin top side (1.5mm) of the keystone as possible. 
   • You may find your slicer wants to drop the keystone object to the mat (this is the case in Super Slicer) and so you may just need to work with this location. Only parts of an object can be elevated.

I would suggest that the model is printed face down. Either face should work. Some printers may cope with any direction!