Scythe Grand Flex 120 revealed

All of the models are featuring the newly developed from scratch “Sealed Precision FDB” as the core for its Grand Flex 120 mm series. This bearing is based on the “Fluid Dynamic Bearing” technology that has served Scythe well for several popular high-end series in the past and is now being used as a very solid and reliable foundation for the new design. Scythe’s Fluid Dynamic Bearing utilizes lubricantoil between the shaft and the bearing, resulting in excellent lubrication and silent operation. The used high-grade lubricant oil can withstand high temperatures of up to 250 degree Celsius, and are additionally of special interest for industrial use. Grand Flex 120 case fans are made for long time silent operation and are rated with MTTF (Mean Time To Failure) of 120.000 hours (at 25 degree Celsius).


Another highlight is the completely new design of the 9 blades of the Grand Flex 120 and Grand Flex 120 PWM models. Each fan blade is made especially robust and is equipped with an indentation close to the center-hub. Hence allows much more focused and more concentrated airflow towards the cooling area, resulting in better performance when used with cooler heatsinks. In order to reduce the vibration transferred to PC chassis, a set of vibration dampers is supplied with each Grand Flex 120 case fan. In addition, all Grand Flex 120 case fans come with a 500 mm long cable, which is sleeved – allowing it to be conveniently used even in big tower chassis.

To match every users taste, Scythe Grand Flex 120 axial fans are available in five different variations. For users seeking constant airflow at fixed speed, total of four models are available, including 800 rpm, 1.200 rpm, 1.600 rpm and 2.000 rpm. Users seeking a fan with PWM support, can rely on the Grand Flex 120 PWM model, which offers a very wide fan speed range from 600 up to 2.400 rpm.


  Main technical details for all of the models:

– SM1225GF12SL: providing airflow level of 30,5 CFM, rotating at 800 revolutions per minute with noise level of 18,0 dbA
– SM1225GF12L: providing airflow level of 45,8 CFM, rotating at 1.200 revolutions per minute with noise level of 23,5 dbA
– SM1225GF12M: providing airflow level of 61,1 CFM, rotating at at 1.600 revolutions per minute with noise level of 28,5 dbA
– SM1225GF12H: providing airflow level of 76,6 CFM, rotating at at 2.000 revolutions per minute with noise level of 34,5 dbA
– SM1225GF12SH-P: providing airflow level range of 24,2 to 96,8 CFM, rotating at speed range of 600 to 2.400 revolutions per minute with noise level range of 13,5 ~ 39,5 dBA, PWM-Technology


Dobrin Krastev is the owner, reviewer and newsman of with more than 15 years' experience in personal computers, server and storage systems, UPS, peripheral devices and software. Passionate about testing and reviewing, AMD overclocking using AM3 990FXA and AMD FM2 A85X test systems and building modding projects.
1 Comment
  1. Reply Antonio 13.08.2013 at 6:12

    Very interesting, very nice specs. Color combination is simply….how should I put it….awful!!!

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