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be quiet! Pure Rock 2 vs Cooler Master MasterLiquid PL240 Flux: Comparison
be quiet! Pure Rock 2 vs Cooler Master MasterLiquid PL240 Flux: the noise level difference
These two are close on paper, and noise level is the only measure that separates them at all: be quiet! Pure Rock 2 26.8 dBA against Cooler Master MasterLiquid PL240 Flux 32 dBA. Fan count runs the same way, 1 on the be quiet! Pure Rock 2 versus 2 on the Cooler Master MasterLiquid PL240 Flux, another win for Cooler Master MasterLiquid PL240 Flux. Warranty runs the same way, 3 years on the be quiet! Pure Rock 2 versus 5 years on the Cooler Master MasterLiquid PL240 Flux, another win for Cooler Master MasterLiquid PL240 Flux. Cooler Master MasterLiquid PL240 Flux also leads on max speed, 1500 RPM on the be quiet! Pure Rock 2 versus 2300 RPM on the Cooler Master MasterLiquid PL240 Flux.
Who each one is for
The be quiet! Pure Rock 2 suits budget locked Ryzen 5 / Core i5 builds and noise-sensitive entry-level PCs, though it is not built for unlocked or high-TDP CPUs and enthusiasts wanting RGB. Take the Cooler Master MasterLiquid PL240 Flux for buyers who prefer sourcing their cooler from an established, broad-portfolio brand. Cooler Master's air cooling reputation extends into this AIO offering. The same goes for compact cases needing a 240mm liquid cooling solution. Covers mainstream thermal needs without requiring 360mm clearance. Avoid it for buyers specifically chasing the strongest value-per-dollar in this radiator size. The Arctic Liquid Freezer III 240, covered elsewhere on this site, carries the stronger independent testing reputation at a comparable price point.
Frequently asked questions
Do the be quiet! Pure Rock 2 and Cooler Master MasterLiquid PL240 Flux differ on airflow?
Yes. Airflow reads 51.4 CFM on the be quiet! Pure Rock 2 versus 72.37 CFM on the Cooler Master MasterLiquid PL240 Flux.
Is the Fan Size the same on the be quiet! Pure Rock 2 and Cooler Master MasterLiquid PL240 Flux?
It is. Both are listed at 120 mm, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- be quiet! Pure Rock 2
- be quiet!
- Cooler Master MasterLiquid PL240 Flux
- Cooler Master
Cooler Type
- be quiet! Pure Rock 2
- Air Tower
- Cooler Master MasterLiquid PL240 Flux
- AIO Liquid
Series
- be quiet! Pure Rock 2
- be quiet! Pure Rock 2
- Cooler Master MasterLiquid PL240 Flux
- Cooler Master MasterLiquid PL240 Flux
Socket Compatibility
- be quiet! Pure Rock 2
- AMD AM4/AM5, Intel LGA1700/1200/115X/2066/2011-3
- Cooler Master MasterLiquid PL240 Flux
- AMD AM4/AM5/TR4, Intel LGA1851/1700/1200/115X/2066/2011-3
Tower Layout
- be quiet! Pure Rock 2
- Single-Tower
- Cooler Master MasterLiquid PL240 Flux
- Not Applicable
Fan Count
- be quiet! Pure Rock 2
- 1-50%
- Cooler Master MasterLiquid PL240 Flux
- 2Best
Noise Level
- be quiet! Pure Rock 2
- 26.8 dBABest
- Cooler Master MasterLiquid PL240 Flux
- 32 dBA
RGB Lighting
- be quiet! Pure Rock 2
- No
- Cooler Master MasterLiquid PL240 Flux
- Yes
Fan Size
- be quiet! Pure Rock 2
- 120 mm
- Cooler Master MasterLiquid PL240 Flux
- 120 mm
Max Speed
- be quiet! Pure Rock 2
- 1500 RPM-35%
- Cooler Master MasterLiquid PL240 Flux
- 2300 RPMBest
Airflow
- be quiet! Pure Rock 2
- 51.4 CFM-29%
- Cooler Master MasterLiquid PL240 Flux
- 72.37 CFMBest
PWM Control
- be quiet! Pure Rock 2
- Yes
- Cooler Master MasterLiquid PL240 Flux
- Yes
Lighting
- be quiet! Pure Rock 2
- None
- Cooler Master MasterLiquid PL240 Flux
- ARGB
Warranty
- be quiet! Pure Rock 2
- 3 years-40%
- Cooler Master MasterLiquid PL240 Flux
- 5 yearsBest
Which one should you pick?
Choose be quiet! Pure Rock 2 if you want the lower noise level (26.8 dBA vs 32 dBA).
Choose Cooler Master MasterLiquid PL240 Flux if you want the higher fan count (2 vs 1), the higher max speed (2300 RPM vs 1500 RPM) and the higher airflow (72.37 CFM vs 51.4 CFM).
Price comparison
| Retailer | be quiet! Pure Rock 2 | Cooler Master MasterLiquid PL240 Flux |
|---|---|---|
| Amazon | View on Amazon | View on Amazon |
| Newegg | View on Newegg |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
be quiet! Pure Rock 2
7.4 / 10 Expert Rating
A sensible quiet budget cooler for locked mainstream CPUs, not for chasing overclocks.




