Updated 6/4/25: added a chamfered version which is slightly more “knee-friendly” for under desk applications.

While organizing my cables with underware I learned about keystone jacks which make it easier to affix cable ends for easy plugging and unplugging. I made this with the intent to eventually run an aux and a couple usb ports from my computer to the front of my desk. Photos show some rj45 keystones I already had on hand.

This is a amalgamation of the neat parametric keystone panel here [https://www.printables.com/model/19001-wallmounted-keystone](https://www.printables.com/model/19001-wallmounted-keystone) with wallmount removed and the clips of David D's openGrid hook [https://makerworld.com/en/models/1179234-opengrid-minimal-hook](https://makerworld.com/en/models/1179234-opengrid-minimal-hook). I tweaked the spacing so that the keystones would align with the 28mm grid in a 4:3 ratio, and attached three of the clips. This feels very sturdy and doesn't seem like it would go anywhere particularly if its wired in with wires supported by underware.

Because the spacing is aligned to the grid, you can place them next to each other to effectively make the panel wider. (Note in the picture of this the two panels were printed in different orientations for testing, normally the sheen would be more similar :).)

The clips need to be printed vertically lest they snap off along layer lines. Support is required for this. In the profile I have support within the keystone hole which needs to be popped out, I used a flat head screwdriver for this. Trees might be easier to remove but would require significantly more filament. Anyway, the surface texture here doesn't matter as it will be covered by your jacks.