Scythe Kaze Flex RGB PWM

Testing

The following system was used to test the fans:
– Processor: Intel i9 9900K @ 5GHz
– Motherboard: ASRock Z390 Phantom Gaming X
– RAM: Ballistix Tactical Tracer 16GB DDR4 @ 2666MHz
– GPU: MSI GeForce RTX 2070 Super Gaming X Trio
– SSD: Crucial MX500
– HDD: WD 1 TB Blue
– CPU Cooler: Cooler Master MasterLiquid 240
– PSU: Seasonic Snow Silent 750W Platinum
– Case: Phanteks Enthoo Luxe White
– Thermal compound: Noctua NT-H2

 

The testing of all fans is done with the i9 9900K CPU overclocked to 5GHz at maximum load with Intel Burn Test V2. All system fans and the tested fans are turned to their maximum speeds while the PC case has both side panels closed.

The 120mm fans has been tested using a 240mm CPU liquid cooler, the CoolerMaster MasterLiquid 240 at max. RPM.
The 140mm fans has been tested using a 280mm CPU liquid cooler, the NZXT Kraken X61 at max. RPM.

 

120mm Fan Performance

 

The noise level was measured at three different distances from the fans (10cm, 20cm, 30cm.) the noise was measured with a margin of error of ± 5 db.

 

Final thoughts

The Kaze Flex RGB is a good fan that is an improvement over the regular Kaze Flex series. In terms of functionality and performance, both fans are the same. However, the new RGB version is better looking and can be easily matched with any system.
The performance is good, especially when we talk about the Kaze Flex RGB 1800RPM PWM version, which not only offers good airflow and static pressure, but makes the most sense. The only drawback of this fan is the noise generated at its a maximum speed of 1800 RPM.

The Kaze Flex RGB 800RPM version is better suited as a case fan, as the static pressure it generates is not good enough for a radiator or heatsink usage, not unless you want to trade cooling for a lower noise.
In terms of build quality, these fans are very good, starting with the cable which is covered by sleeving and the RGB wires that are completely black. In addition, the RGB cable can also be used to pass-through the RGB signal to a different fan, thus, reducing the overall cable clutter. The fan frame is solid and has no sharp edges or marks from the manufacturing process, while the impellers have a matte texture that is uniform.

In conclusion, the Kaze Flex RGB offers a good performance and a design that is easy to match with any system. The price of these fans is approximately 16 USD or 17 EUR, and in this price range, not many fans can deliver this level of performance and build quality.

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