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be quiet! have adopted a 120mm Chinese fan marked ‘BQ QF2 12025 HS' rated at 12V, 0.37A for a maximum of 2,700 rpm. Hopefully it won't be hitting those speeds in the real world, but we will find out shortly. This is not a more expensive fluid dynamic bearing fan, just a rifle bearing unit. be quiet! fans are generally quite good, however.
This is a Channel Well Technology (CWT) OEM design that they worked on with be quiet! for these supplies. On the primary side this is an APFC, half bridge design with LLC resonant converter. Secondary side is synchronous rectification & DC-DC convertors. The main cap is from Chinese brand Teapo – just a mid-range capacitor, not a more expensive Japanese unit. At least it is 105C-rated (420V 1100uF). Again I don't know if recent Teapo standards are any better than the earlier days, but it would be nice to see be quiet! using higher quality caps in their units. If cheaper brands can use Japanese caps at similar price points, so should be quiet!
Transient filter comprises 2x X caps, 6x Y caps, 2x CM chokes and a single MOV.
Filtering capacitors on the secondary side are almost all from Teapo with a few from Elite – another Chinese brand.
