|Brand Name||Cooler Master|
|Item model number||R4-L2R-20AR-R1|
|Item Weight||12.4 pounds|
|Product Dimensions||4.7 x 4.7 x 1 inches|
|Item Dimensions L x W x H||4.72 x 4.72 x 0.98 inches|
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Cooler Master SickleFlow 120 - Sleeve Bearing 120mm 3-Pin LED Silent Fan for Computer Cases, CPU Coolers, and Radiators - Red
|Price:||$8.34 & FREE Shipping on orders over $49. Details|
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- Transparent dark-gray fan blades for better LED effect
- Long life sleeve bearing for longer life expectancy
- Strong air flow to fortify cooling efficiency
- Silent operation as an excellent choice for case cooling
- RoHS compliance
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Top Customer Reviews
This fan is perfect when used as a well tuned PWM fan. I use SpeedFan to customize my settings. I set the target CPU temp to 54 degrees C, and I allow it increments of 3 PWM (the default is 10, which causes noticeable noise changes). This creates an almost silent PC while idle (like surfing, word processing, etc). After a game has been running for 4 or 5 minutes, the fans get to about 1300rpm and the CPU holds at 54. At this speed, the fan is only audible if I mute the gaming noises, but even then, its not annoying. At minimum speed, in a completely silent room in a rural house, I have to strain to hear them at their lowest speed (700rpm).
I actually have three of these chained together using a rosewill pwm splitter. One is on the CPU heatsink, the other two are case fans. They all spin up when the system gets warm. They never seem to go beyond 50% even when gaming with a hot Radeon 4890.
For the price, this is the best value PWM 120MM fan I could find. The Scythe PWM 120mm seems like it might be able to push more air for a given db of noise, but you can get three of these fans for the price of two of those.
connection to a 4-pin connector on the motherboards. It has good airflow, and fits anywhere a standard 3-pin
fan does in a computer case. It can also be used as a replacement fan on a cooler assembly, which many CPU's
require these days on motherboards using the 4 pin connector and PWM to control the fan assembly. Many of them
have 3 pin fan connectors for all other case fans.
Pulse width modulation is a way of controlling the fan speed using an amplifier on the motherboard, that will
vary the width of the signal (timing) or height (voltage) to increase or decrease the fan speed based on the
sensed CPU core temperature. A 3-pin fan by contrast, only receives a return signal on the 3rd wire telling
the CPU's fan operational amplifier it is spinning. Without the return voltage signal the computer will shut
down, signifying the fan has failed and turning off to protect your PC's processor from overheating. This is
also done for any other fan that has this type of support on the motherboard. That's why it's important that
you connect your fans to the motherboard connectors, instead of the power supply's.
These fans were used on an Intel DH55HC motherboard in an Antec 300 case. The Intel mobo has only PWM fans.
They were the 120mm and 80mm PWM Cooler Master fans.
Cons: Quality control.
I ordered 3 at first, one scratched on the edges as it spun. It even left markings from doing so. I did an RMA on the single one. Figured well the other two are working great and I wanna move my whole case over to 4 pin fans. I ordered 3 more and they all had noisy bearings, scraping noises, etc. The RMA one came back and it seemed good at first until later I heard an offset, humming noise and tracked it down to that fan. I also heard one of the original ones starting to make noise. That is 6 out of 7 being unnecessarily noisy. I might up the rating if the next batch works out. Maybe I'm just unlucky or overly picky.
Most Recent Customer Reviews
Bought this 33 days ago and not eligible for return because it is over 30 days... one of the 4 LEDs went out and it is already noisy. Cooler Master is a good brand. Read morePublished 12 hours ago by Carol and David Melvin
They blow hard, and they light green. Pretty much exactly what a case fan should do. Without a controller, they are a little loud, but that doesn't bother me much where the... Read morePublished 13 hours ago by Adam
garbage. I order this thing because my last one was getting old and was starting to make a buzzing sound so I thought getting a new one to fix that would be fine. Read morePublished 17 hours ago by Trevor
Out of three fans that I bought, one works great, one works semi-okay, and the third one barely works. All worked fine until a few days after the eligible return date.Published 1 day ago by Josh
Like any fan with this size/cfm, it's loud if run on full speed. Having this controlled by the computer, it's nice and quiet and only periodically ramps up. Read morePublished 1 day ago by Eno4G
Its installation of my case is not difficult, because I didn't install that kind of fan before. The airflow is so good and keeps my pc case fresh even when I'm playing videogames... Read morePublished 2 days ago by Dessy Balandrano
Worked great as the second fan for my Hyper 212 EVO CPU cooler. Allows variable speed for hugely quieter build than my previous one.Published 4 days ago by Elder Jim