let us compare these booth:
Kama Flex:
1.000 upm Version: 38,9 CFM = 66 m³/h / 15,8 dBA / DC12V / 0,13 A
MTBF:
120.000 Stunden
Bearing:
S-FDB
> better bearing, longer lifetime
Slip Stream:
800 upm Version: 40,17 CFM = 68 m³/h / 10,70 dBA / DC12 V / 0,10 A
MTBF:
30.000 Stunden
Bearing:
Sleeve
> more airflow, less dBA, less Power
its up to you what you want.
Both fans can run via 4-Pin adapter (included) cirect with your PSU. If the fans run in 5V mode have to check by yourself. But what i think its not necessary to run both fans in 5V mode.
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