I think the words “Gentle Typhoon” is enough of an introduction here for most readers. But for those who haven’t, a simple search for “Scythe Gentle Typhoon” will tell a story- a fan series manufactured by Nidec Servo and then brought to the retail market by Scythe for years and was regarded as the best overall static pressure optimized fan. They weren’t the best aesthetically and came as barebones as you could imagine with no cable sleeving out of the box. But for ~$15, they provided better cooling at lower noise than just about any retail 120mm fan. This is no fable though, as the two brands had a falling out resulting in no Scythe GTs period and very limited GTs anywhere. Thankfully, Cooler Guys in the US picked up the slack and are still offering the same fans in a few different speed options. They were limited to the US and UK in distribution, however, and the prices had increased also to ~$20 per fan. Enter then Dazmode and their house brand Darkside. This is the first product coming out of the Darkside-Nidec Servo collaboration and it’s a black edition as well. What does that even mean? Thanks to Hank from Performance PCs, we have two samples to check now.

Let’s take a look at the specs courtesy the product page on PPCs:

  • Speed:  2150RPM
  • Air performance : 68.8CFM
  • Nose: 34db (25cm from the fan, free air)
  • Power: 12VDC, 0.123A (0.63A peak max)
  • Operational voltage range: 5-12V (~900rpm-2150rpm)
  • Bearing: Ball
  • Expected life: 100000h/35c or 55000h/60c
  • Appearance: Full black
  • Dimensions:  119 x 119 x 25 mm / 4.68 x 4.68 x 0.98 in

Let’s also take a minute and go through the product specs for the fan from the Nidec Servo website here noting that this particular fan is the D1225C12B6AZ-00 model. Between these two sources, we get a lot of useful information including P-Q curve, peak input current draw (which should be 0.53 A in the specs above as the linked PDF sheet) and fan composition which very few other fans provide. Note also that there is actually some information given as far as noise (nose being a typo there) measurements go, and the free air part is most important here- noise signatures of fans changes depending on the application they are used on- free flow, hard drive cages, dust filters, heatsinks, radiators all can influence this, as does the ambient noise level which unfortunately is not mentioned. Another thing missing is the warranty period which I unfortunately can’t find anywhere. Aside from this, we see that this is a 3 pin voltage controlled fan using a ball bearing with a good MTBF rating so it’s unlikely to malfunction soon. Let’s now take a look at the fan on the next page.

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