The Best slim case fans of 2021 – Top 10 and Rankings

If you’re looking for slim case fans but don’t know which one is the best, we recommend the first out of 10 slim case fans in this article. Check out how we decide after hours of researching and comparing dozens of items on the market.

Rank No. #1
Scythe Kaze Flex 120mm Slim Fan, PWM 300-1800RPM, Quiet Case/CPU Cooler Fan, Single Pack
  • Stands only 15mm thickness(17mm with Anit-Vibration Rubber), the thin frame design is ideal for Small Form Factor computer and application fan((HTPC, Mini-ITX PC), low profile CPU cooler and water cooling radiator.
  • Sealed Precision Fluid Dynamic Bearing: the bearing and the spindle are made of high quality compressed metal and are lubricated by a special oil film resistant to temperatures of up to 250C° / 480F°. This drastically reduces friction, ensuring smooth operation and reduced wear, which results in long life span and silent operation.
  • Optimized performance to noise ratio, premium quality with Anti-Vibration rubber on the corners reducing possible vibration during operation.
  • Newly designed blade and frame contribute high airflow with low noise. PWM control offers wide range fan speed for excellent balance of performance and quietness.
  • Dimension: 120x120x15mm(17mm with Anit-Vibration Rubber), Fan Speed: 300±200 - 1800 rpm±10%. Noise rate: 2.7 - 30dBA, Air Flow: 8.28 - 50.79 CFM. Static Pressure : 0.23 - 1.35 mm H 2 O. Connector: 4-Pin, Voltage: 12V
Rank No. #2
ID-COOLING NO-12015-XT-ARGB Case Fan 15mm Thickness PWM Fan 5V 3 PIN Addressable RGB Fan Slim Fan for Radiator/CPU Cooler/Computer Case
  • 【PWM fan】The PWM fan control allows for dynamic speed adjustment between 500 rpm to 2, 000 rpm, minimizing noise or maximizing airflow. Max. Air Flow: 54.6CFM; Noise: 13.8~31.2dB(A)
  • 【RGB Sync】The Addressable RGB lighting can sync with the motherboard with a 5V 3PIN connector.
  • 【Compatibility】The standard 120X120X15mm cooling fan is designed to match the CPU cooler, CPU water cooler, pc case, etc..
  • 【15mm thickness】The RGB case fan is ideal for low-profile CPU coolers, HTPCs, ITX builds, space-restricted applications with 15mm thickness to save more space.
  • 【Superior Build Quality】High quality fan blades and frame built-in extremely even light diffuser. The 120mm fan Blade engineered for Low-Noise operation without sacrificing performance.
Rank No. #3
SilverStone Technology Slim 120mm Addressable RGB Fan with 15mm Thin Design FW124-ARGB
  • Displays any color combination by use of an addressable RGB LED control box or capable motherboard via 5V, D, NP, g signal source
  • Slim 15mm thick design for superb compatibility with smaller case designs
  • Optimized fan blades for balanced air pressure and Airflow
  • Pwm enabled for silent or high performance applications
  • Coating with light diffusing material improves light uniformity
Rank No. #4
Scythe Kaze Flex Slim 120mm RGB LED Fan, PWM 300-1800RPM, No Controller Included, Single Pack
  • Slim design only 15mm thickness(17mm with Anit-Vibration Rubber), this thin fan is ideal for SFF computer(HTPC, Mini-ITX case) or low profile CPU cooler/heatsink. PWM control offers wide range fan speed for excellent balance of performance and quietness.
  • Newly designed blade and frame contribute high airflow with low noise, ideally for computer case, radiator/heatsink and CPU cooler. PWM control offers wide range fan speed for various application and system.
  • Using Sealed Precision FDB for long life span and quiet operation.Included antivibration rubber pads covering each corner of frame. These decouplers effectively reduce possible vibrations and allow quiet operation.
  • 8 high quality LEDs built into central hub, the lighting is bright and even reflected with milky-white blade. The 4-pin 12V RGB connector allows fan to be synchronized and controlled by RGB motherboards for vivid and multiple lighting effects(16.8 Million colors). Compatible with ASUS Aura Sync, MSI Mystic, Gigabyte, Asrock.
  • Connector: 4-Pin, Dimension: 120x120x15mm(17mm with Anit-Vibration Rubber), Fan speed: 300±200~1800±10% RPM, Airflow: 8.28~50.79CFM, Noise: 2.7~24.9dBA, Static Pressure: 0.23~1.35mmH2O, MTTF: 100,000hrs
Rank No. #5
Scythe Kaze Flex 120mm Slim Fan, PWM 300-1200RPM, Quiet Case/CPU Cooler Fan, Single Pack
  • Stands only 15mm thickness(17mm with Anit-Vibration Rubber), the thin frame design is ideal for Small Form Factor computer case fan((HTPC, Mini-ITX PC), low profile CPU cooler/heatsink and water cooling radiator.
  • Sealed Precision Fluid Dynamic Bearing: the bearing and the spindle are made of high quality compressed metal and are lubricated by a special oil film resistant to temperatures of up to 250C° / 480F°. This drastically reduces friction, ensuring smooth operation and reduced wear, which results in long life span and silent operation.
  • Optimized performance to noise ratio, premium quality with Anti-Vibration rubber on the corners reducing possible vibration during operation.
  • Newly designed blade and frame contribute high airflow with low noise. PWM control offers wide range fan speed for excellent balance of performance and quietness.
  • Dimension: 120x120x15mm(17mm with Anit-Vibration Rubber), Fan Speed: 300±200~1200 rpm±10%. Noise rate: 2.7 to 23.9dBA, Air Flow: 8.28 - 33.86CFM. Static Pressure : 0.23 to 0.9mm H 2 O. Connector: 4-Pin, Voltage: 12V
SaleRank No. #6
Ultra Slim Case Fan 120mm Case Fan with Long Life Sleeve Bearing, Super Quiet Computer Case Fan with PWM (Pulse Width Modulation) Supported, 15 mm Thickness Very Thin & Low Profile
  • Fan Size: 120mm
  • Bearing Type: Long Life Sleeve
  • RPM: 600 - 1600 RPM 10%RPM
  • Air Flow: 54.55CFM Maximum
  • Noise Level: 11 - 30.32 dBA
Rank No. #7
Noctua NF-A12x15 FLX, Premium Quiet Slim Fan, 3-Pin (120x15mm, Brown)
  • Premium quiet slim fan, 120x120x15 mm, 12V, 3-pin Molex, 1850/1400/950 RPM, max. 23.9 dB(A), >150,000 h MTTF
  • Award-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
  • 120x15mm slim design ideal for low-profile CPU coolers, HTPCs, ITX builds, space-restricted applications etc.
  • 3-pin FLX version provides 1850/1400/950rpm speed settings via Low-Noise Adaptors to fine-tune the fan for maximum airflow or near-silent operation
  • Includes anti-vibration mounts, fan screws, extension cable and 3:4-pin adaptor for powering the fan directly from the power supply
Rank No. #8
SilverStone Technology SST-FN124 120mm Fan with Slim 15mm Design with 3-Pins in Black FN124
  • Slim 15mm thick design for superb compatibility with smaller case designs
  • Optimized fan blades for balanced air pressure and Airflow
  • Air-inlet with optimized Aerodynamic reduces noisy air turbulence
  • 1500 rpm and 25. 06CFM at 18 dBA
  • 120mm (L) x 120mm (W) x 15mm (H)
Rank No. #9
SXDOOL 120mm Slim Fan 120X12mm Thickness DC 12V with 3-Pin,for Computer Pc Case Quiet Silent Cooling
  • ❶ Stands only 12mm thickness, the thin frame design is ideal for Small Form Factor computer and application fan((HTPC, Mini-ITX PC), low profile CPU cooler and water cooling radiator.
  • ❷ Optimized fan blades for balanced air pressure and airflow
  • ❸ Air-inlet with optimized Aerodynamic reduces noisy air turbulence
  • ❹ 120X120X12mm | 12VDC | 1400RPM | 39CFM | 18dBA | 3-Pin Connector
  • ❺ Trusted SXDOOL quality backed up with 1-year manufacturer's warranty
SaleRank No. #10
2-Pack 80mm Slim Fan, 80mm x 80mm x 10mm 12V Silent Fan for PC Case Small ITX Builds EVGA GPU Cooelr
  • 【80mm fan PRODUCT PARAMETERS】Dimensions: 80x80x10mm | 3.1 x 3.1 x 0.4inch | Voltage: DC 12V | Current: 0.1Amp | Power: 1.3Watt | Speed: 2500RPM | Airflow: 18CFM | Noise: 25dBA | Bearing: Sleeve | Long life with 35,000 Hrs
  • 【12v fan WIDELY APPLICATIONS】It is best for cooling the hottest & Narrow spaces | Circulating and exhausting stuffy air | Designed for projects that requires cooling or ventilation | Or as an replacement fan for various products | Allows the fans to be laid flat or stand upright
  • 【12v dc fan 2-PIN FEMALE PLUG】RED Wire is Positive(+) | Black Wire is Negative(﹣) | The Fan Wire Length is 12.6 inch. | The positive and negative poles can be adjusted as your need; More info please refer to the product description below
  • 【computer fan TWO WAY INSTALLATION】Blow warm air out of the case | Draw cool air into your case | Push the hot air out of your computer when mounted on the back or draw in fresh air if you mount it at the front of the case | Rotation Direction: Counter-clockwise
  • 【12v computer fan COMPONENTS & WARRANT】Package included 2-Pack fan. It can be easily mounted with the included metal protective grill and hardware. | 12-month warranty and friendly customer service

How Do You Buy The Best slim case fans of 2021?

Do you get stressed out thinking about shopping for a great slim case fans? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching slim case fans, which is why we have assembled a comprehensive list of the greatest slim case fans available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for slim case fans that you consider buying. Your questions might include the following:

  • Is it worth buying an slim case fans?
  • What benefits are there with buying an slim case fans?
  • What factors deserve consideration when shopping for an effective slim case fans?
  • Why is it crucial to invest in any slim case fans, much less the best one?
  • Which slim case fans are good in the current market?
  • Where can you find information like this about slim case fans?

We’re convinced that you likely have far more questions than just these regarding slim case fans, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for slim case fans, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible slim case fans. Make sure that you are only using trustworthy and credible websites and sources.

We provide an slim case fans buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available slim case fans currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of slim case fans has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features:What bells and whistles matter for an slim case fans?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your slim case fans.
  5. Customer Ratings: Number ratings grade slim case fans objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their slim case fans.
  7. Product Quality: You don’t always get what you pay for with an slim case fans, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an slim case fans is should be an indication of how long it will work out for you.

We always remember that maintaining slim case fans information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding slim case fans is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.