If your SW console fan is running very loud or not functioning then a replacement may be needed.
This part is the same Delta Electronics 5V 0.33A/0.32A fan used by Switch.
The fan uses an integrated ribbon flex cable to connect to the console mainboard. The ribbon cable connects via a zif connector making it a plug and play replacement module, attaches to your existing heatsink.
Specifications:
Direct Current: DC 5V, 0.33A/0.32A
Color: Black
Connection: 4-pin 4-wires
Status: Brand New
Compatible Part Numbers:
D P/N: BSB0405HAATT, PVB040A05H
Compatible Models:
Switch 2017
Switch 2018
Switch 2019
Package Includes:
1x CPU Cooling Fan