DragonSteelMods posted a review on the Noctua NF-S12B FLX 120mm Fan
Today for review I've got another 120mm fan entry from Noctua, it's called the NF-S12B FLX, the FLX meaning flex, or that it can be run at variable speeds. I've put the NF-S12B FLX up against several other fans I've got on hand, including Noctua ones, and it performs admirably well.Noctua NF-S12B FLX 120mm Fan Reviewed