I'm a believer in PE foam and its benefits for keyboard acoustics and feel. I've bought and modded a few Keychron V5's and used PE foam from Keyboard Kustoms and really appreciated it. I was looking for a similar benefit to my new Q5.

After installing this PE foam on my Q5, the sound and feel were improved the way I hoped. However, I noticed key presses not registering on a few keys. I opened the VIA key tester online and noticed a few keys (down arrow, "F", and a few others) either not registering or only doing so after a few key presses or after a hard press. I reopened my Q5, removed the PE foam, reassembled, and all of the keys register now.

After some checking, I’m sure that my key switches are a bit worn and aren’t clicking in fully to the plate, causing they to lose contact with the PCB. Pretty sure it’s my fault - the PE foam just exposed it.

Giving an 4 out of 5 - definitely is cut to match my board, definitely fixes sound and feel, but might impact connectivity if you have loose or worn key switches.

(My setup: Keychron Q5 without a knob, Gateron Oil King switches, force break mod on frame, tape mod on back of PCB, some minor pad updates to stock stabilizers.)

fits great but still issues. the keychron q5 is pingy as hell. but kustoms’ foam does not help. I recommend you buy a pc plate from the keychron store and the sound and feel will be better.

Fit great, sounds great. Appreciated how quickly my order was confirmed and shipped as well.

Excellent delivery time, communication, and service. I’m very happy to see such a well run small business. 5/5 product for price.

Well made and fits perfectly.