Here is a great video recorded with Jason from our YouTube team showing off the Top 5 FREE and PAID Creality Ender 5 (Pro) Upgrades. I recommend anyone who owns an Ender 5 Pro to check this out!
iirc the ender 5 PRO already has a silent stepper board.
But maybe someone else wants to weigh in?
Using the Ender 5 Pro, all you’ll hear are the fans.
It’s very quiet