simple user review of the R4
Pros: very fast airflow, cheap
Cons: vibration sound when used horizontally
bought 18 of these for my phobya 1080 push pull. pretty strong flow, the packaging rated 90 cfm, and 20 dba, 18 of them still did not cause a loud sound compared to one Scythe Ultra Kaze 120mm. the tinted grey plastic, or smoked hides dust well, and compared to other fans, i have used, sound the quietest with greatest airflow. when i say quiet, i dont mean dB but subjective noise intrusion, kinda like a low hum vs a high pitched whine sound. i got them for 10$ singapore dollars each, which is like $7.60 USD. easy to replace if fails as its qiute cheap. pack also stated a 1-2 year warranty, forgot how many, threw the box away. i liked the wire, it doesn't have the ugly red, yellow...
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