thewall58 0 Posted May 23, 2017 Hi newbie here hope you can help I have a Swann NVR and as you know they can have very noisy fans, i haven't taken the box apart yet but would a Noctua NF-A4x10 FLX 40mm x 10mm Low Noise Fan work/fit in the box from what i have read there are 2 fans one for the country and one for the power supply and it is this one that is noisy it runs 24/7 and when there is no other noise in the room drives you mad. If it fits is it an easy fix or do you have to alter anything. Cheers Share this post Link to post Share on other sites