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The Sunon MagLev-Vapo 40mm x 20mm Fan is the best performing fan in it's class. It boosts a 5.5 CFM and a reasonable 12.8 dBA rating. This 40mm x 20mm fan comes bare lead but we can put either 3 or 4 pin connectors on this in the options below.
Total Reviews: 3 Average Rating:
Reviewer: Cat (10)
Replaced the crappy OEM 40mm fans in a pair of 5.25” Sytrin HDD coolers with these little guys. A couple of issues with any 40mm fan are, the tight spaces are a pain to clean, and the rapid accumulation of dust in those tight spaces. During a complete dismantle, cleaning and rebuild project, the four little guys were dropped into a container of Purple Power liquid degreaser for about fifteen minutes and after a second swishing in a fresh bath, they came out sparkling clean. After blowing them off with moisture trapped compressed air they sat for a couple of days. Then they were hooked up to a test PSU, and, to everyone’s surprise, they looked new, and are still the most efficient and quietest 40mm fans in the room.
Pair of these fans replaced OEM in a network security appliance which screamed very loudly even once ACPI power mgmt slowed them, unbearable to run in same room for any length of time. The airflow is lower than original but certainly adequate. I will be buying 4 more when they are back in stock. Note 4-Pin option is NOT typical CPU fan 4-pin connection but rather single wire 3-pin for RPM and 4-pin Molex power connection; not obvious from product description and I would not have chosen this option had I known.
better than any brands02-23-2010
Reviewer: sunon lot airflow and verry sile (1)
sunon nice and verry silence fan better than silenx fans just buy this fan if u want low db and more airflow pay more to long live and more airflow and low db