GELID Solutions expanded its Silent series fan lineup, not with newer, bigger, or quieter models, but for a change, with smaller, sub-80 mm ones. It launched the Silent 5 and Silent 6, which measure 50 mm and 60 mm, respectively. Although in sizes that scare away silent-PC enthusiasts, particularly users of compact HTPC cases, GELID is betting on low-noise to drive the two products home. 

GELID Solutions expanded its Silent series fan lineup, not with newer, bigger, or quieter models, but for a change, with smaller, sub-80 mm ones. It launched the Silent 5 and Silent 6, which measure 50 mm and 60 mm, respectively. Although in sizes that scare away silent-PC enthusiasts, GELID is betting on low-noise. 

The Silent 5 (model: FN-SX05-40) measures 50 x 50 mm, with a thickess of 15 mm. It can spin at speeds of up to 4,000 RPM, pushing 12.9 / 21.94 CFM of air. Even at those speeds, its noise output is only as high as 23 dBA, according to the company. The fan uses standard 3-pin fan connector.

The Silent 6 (model: FN-SX06-38), on the other hand, measures 60 x 60 mm, with 15.5 mm thickness. Its top speed is lower, at 3,200 RPM, although its maximum noise output is a tiny bit higher than that of the Series 5, at 24 dBA. At its top speed, it pushes 16 / 27.2 CFM of air. Like its smaller sibling, it uses 3-pin fan connector to draw power. 

Both models feature Hydro Dynamic Bearings, which along with "perfectly balanced fan blades," contribute to the "silent" operation. Both models are priced at US $5 (S $6.4).

 

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