If, like me, you find the K1 noisy, install this cover over the side fan. You'll gain a few decibels.( 14 db according to my super test: WITH and WITHOUT using my iphone's Lidar/Audio/Dolby technology)... :)

Rather effective cover on this big fan.

No screws, it's designed to fit directly into existing holes. Place it with the K1 facing up, as shown in the photo.) and maybe also K1 max

Be careful, there are two sets of holes on the fan

Good print :)[UPGRADE]

• Some airflow optimizations.
• A hole on the front to check that the fan is turning (if you ARE deaf) :)