I silenced my Cisco 3650's with $200 of Noctua fans! I recently picked up a stack of three Cisco 3650 switches (48 port PoE & 4x 10G SFP+, stacking kits, etc) thinking they wouldn't be any louder than my stack of aging 48 port 2960's, but man was I *wrong*! So of course I spent $200 on a dozen 40mm Noctua fans and a few hours replacing all of the fans in all three switches! Huge shoutout to u/composr and u/2Confuzed for [the guides](https://imgur.com/a/cisco-3850-fully-reversible-silent-fan-swap-using-noctua-nf-a4-20-flx-EP20sGx) on [how to mod the fans](https://www.reddit.com/r/homelab/comments/1cccxuv/comment/m97xt4e/), though I was able to figure out how to mod the PSUs on my own since they were pretty loud too. The power supplies were pretty straightforward once I figured out the pinouts, just needed to cut out the old fan, wire red to red and black to black (I cheated and used the scotch locks included with the Noctua fans), and add a spacer from an extra fan module.…