50mm and 70mm fans are not as common as 40mm and 60mm fans but they do find their use in some components, electronic devices, computer cooling, and DIY projects. Also, these fans are made by a handful of companies that you have never heard of. You won’t find 50mm & 70mm fans from top brands like Noctua, Corsair, and Cooler Master but some smaller companies offer pretty good 50mm and 70mm fans.
The 50mm & 70mm fans can be used as replacement fans in 3D Printers, NAS Servers, AVR, DVR, and other electronic devices and components. You can also use them on passively cooled graphics cards, CPU Heatsinks, Slot 1 CPU Coolers (50mm) or in PC Case, Hard Disk RAID Box, motherboard chipset heatsink & VRMs, or for focused cooling in your computer case to cool down a particular component (M.2 SSD, SATA SSD, etc.). Due to their slightly bigger size, 50mm and 70mm fans may offer a bit more cooling performance than the 40mm and 60mm fans. Here in this post, I am going to list down the best 70mm and 50mm fans that you can buy for your cooling needs.
Read also:
Best 50mm Fans
Below are the best 50mm fans that can be used for slot 1 CPU coolers, computer cooling, and cooling electronic devices & components. All these fans run on 12V unless specified.
Scythe Mini Kaze 50mm Fan
[Budget 2-pin 50mm Fan]
The first 50mm fan on our list is Scythe Mini Kaze 50mm. It is a basic 50mm fan that comes with Sleeve bearing and has a fan speed of 4500 RPM. The fan uses a 2-pin connector but a 3-pin adapter is included with it for use with a 3-pin connector on the motherboard or with another device. The fan generates an airflow of 9.42 CFM which is a pretty good figure for a 50mm fan. It is also pretty silent in operation and has a noise level rating of 26 dBA only.
The fan is on the slimmer side and is only 10mm thick, and can be used on Video cards, motherboard chipsets,s or as a replacement fan in projectors, amplifiers, 3D printers, or other electronic devices or equipment. Overall, a pretty good 50mm fan for the price, and it comes from a reputable brand too.
| Scythe Mini Kaze 50mm Fan Specifications | |
| Fan Size | 50x50x10mm |
| Bearing Type | Sleeve bearing |
| Fan Speed | 4500 RPM |
| Airflow | 9.42 CFM |
| Static Pressure | No info |
| Connector Type | 2-Pin |
| Noise Level | 26.09 dBA |
Noiseblocker NB-BlackSilentFan 50mm XS-1
[Best Silent 50mm Fan]
If you are looking for high quality and ultra-silent 50mm fan the Noiseblocker NB-BlackSilentFan 50mm XS-1 is the fan for you. This 50mm fan is from a German company Blacknoise which is known for manufacturing high-quality computer and industrial fans. This fan is 10mm in thickness and comes with its proprietary NB-NanoSLI bearing for silent operation. The fan rotates at 3000 RPM and for connectivity, it comes with a 3-pin connector.
The build quality of the fan is very good as it comes with a reinforced fiberglass PBT-frame and for durability, it has got a Bayer Makrolon rotor with anti-dust technology. The fan generates airflow of 6.8 CFM and Static pressure of 1.18 mmH2O. It is very quiet in operation and has a maximum noise rating of 16.3 dBA only. Also, it comes equipped with NB-slics for vibration-free assembly. It can be used with smaller PC cases, Hard Disk RAID boxes, slot 1 CPU cooler, server chassis, graphics cards, PCIe cards, small heatsinks, 3D printers, and other devices.
Note: There is also a higher RPM version of this fan available, which is NB-BlackSilentFan 50mm XS-2. It has got fan speed of 4000 RPM, airflow of 8.83 CFM, and noise level rating of 21.1 dBA which is still on the silent side of the spectrum. You can check out both these variants from the links given below.
Check out: Best Silent Fans for Quiet PC Build [120mm / 140mm]
| Noiseblocker NB-BlackSilentFan 50mm XS-1 Specifications | |
| Fan Size | 50x50x10mm |
| Bearing Type | NB-NanoSLI bearing |
| Fan Speed | 3000 RPM |
| Airflow | 6.8 CFM |
| Static Pressure | 1.181 mmH2O |
| Connector Type | 3-pin |
| Noise Level | 16.3 dBA |
Buy Noiseblocker NB-BlackSilentFan 50mm XS-1
Buy Noiseblocker NB-BlackSilentFan 50mm XS-2
GELID Silent 5 (FN-SX05-40) Fan
[Best Performance with Highest CFM]
High-performance 50mm Silent Case Fan from GELID Solutions. This is a high airflow and high static pressure fan with figures standing at 12.9 CFM and 2.8 mmH2O respectively. The fan comes with hydro dynamic bearing which is way better than sleeve bearing and it rotates at speed of 4000 RPM. It has got a 3-pin connector and it comes with a sleeved cable for added protection. The fan is on the quieter side having a noise rating of 23dBA. Along with high performance, it has got great build quality but it is a bit thicker at 15mm.
The fan can be used with a variety of devices and components that include a PC case, DVR, heatsinks, HDD RAID box, NAS box, etc. So, if you are looking for a high-performance, high-quality, and branded 50mm fan then look no further.
| GELID Solutions Silent 5 Fan Specifications | |
| Fan Size | 50x50x15mm |
| Bearing Type | Hydro Dynamic Bearing |
| Fan Speed | 4000 RPM |
| Airflow | 12.9 CFM |
| Static Pressure | 2.8 mmH2O |
| Connector Type | 3-pin |
| Noise Level | 23 dBA |
Buy GELID Silent 5 (FN-SX05-40) Fan
Fractal Design Silent Series R3 50mm Fan
[Best High-Quality 50mm Fan]
Fractal Design is a very popular and reputable company that is mainly known for making high-quality computer cases. Here we have a high-quality silent 50mm fan from it which is Fractal Design Silent Series R3 50mm. The fan comes with long-life Rifle bearing and has got a maximum fan speed of 3500 RPM. The build quality of the fan is premium and it uses 3-pin connector. Airflow and Static pressure figures for this fan stand at 6.8 CFM and 1.41 mmH2O respectively, which I think are pretty good. The fan is only 10mm in thickness and can be used with PC cases, heatsinks, hardware components, and other electronic components and devices.
| Fractal Design Silent Series R3 50mm Fan Specifications | |
| Fan Size | 50x50x10mm |
| Bearing Type | Rifle bearing |
| Fan Speed | 3500 RPM |
| Airflow | 6.8 CFM |
| Static Pressure | 1.41 mmH2O |
| Connector Type | 3-pin |
| Noise Level | 19 dBA |
Buy Fractal Design Silent Series R3 50mm Fan
StarTech.com 50x10mm Fan
[Cheap 50mm Replacement Fan]
A basic 50mm replacement fan from StarTech.com. The fan comes with ball bearing and has a fan speed of 4500 RPM. It generates an airflow of 8.63 CFM which is quite good for a cheap fan. The fan is moderately quiet and has a noise level rating of 23 dBA noise. It comes with a 3-pin connector but a 3-pin to 4-pin Molex adapter also comes bundled with it. The fan can be used on the motherboard chipset, and computer cases and can serve as a replacement fan for other devices.
| StarTech.com 50x10mm Fan Specifications | |
| Fan Size | 50x50x10mm |
| Bearing Type | Ball Bearing |
| Fan Speed | 4500 RPM |
| Airflow | 8.63 CFM |
| Static Pressure | No info |
| Connector Type | 3-Pin |
| Noise Level | 23 dBA |
GDSTIME 5 Volt 50x10mm Fan
[5 Volt Fan for Raspberry Pi]
If you are looking for a 5Volt 50mm fan for Raspberry Pi 2 and Pi 3, then this fan will serve your purpose very well. This is a generic 50mm fan that works on 5 volt & 3.3 volt and offers pretty good performance. It comes with Sleeve bearing and rotates at speed of 4500 RPM. The fan offers airflow of 9.5 CFM which is remarkable for such a small fan. It is not that loud nor very silent, as it has a moderate noise level rating of 25 dBA. The fan is 10mm in thickness and uses a 2-pin Dupont Connector and has a wire length of 20cm.
Note: A 12V version of this fan is also available with a fan speed of 5000 RPM, 10.5 CFM airflow, 27dBA noise rating, and comes with dual ball bearing and 2-pin connector. You can check out both of these 50mm fans from the links given below.
| GDSTIME 5 Volt 50x10mm Fan Specifications | |
| Fan Size | 50x50x10mm |
| Bearing Type | Sleeve bearing |
| Fan Speed | 4500 RPM |
| Airflow | 9.5 CFM |
| Static Pressure | No info |
| Connector Type | 2-pin |
| Noise Level | 25 dBA |
Buy GDSTIME 50x10mm Fan [5 Volt]
Buy GDSTIME 50x10mm Fan [12 Volt]
Best 70mm Fans
Below are the best 70mm fans that can be used for CPU, computer cooling, and cooling other devices. All these fans run on 12V.
StarTech.com 70mm TX3 Dual Ball Bearing Fan
[Best Budget 70mm Fan]
A standard and basic 70mm replacement fan from StarTech.com. It comes with dual ball bearing and a 3-pin connector. The fan rotates at a constant speed of 3500 RPM and generates a high airflow of 21.33 CFM. It is a rather loud fan and has a noise level rating of 33 dBA. Overall, a decent budget 70mm fan with 10mm thickness that can be used with CPU coolers and in small form factor computer cases.
| StarTech.com 70mm TX3 Dual Ball Bearing Fan Specifications | |
| Fan Size | 70x70x10mm |
| Bearing Type | Ball bearing |
| Fan Speed | 3500 RPM |
| Airflow | 21.33 CFM |
| Static Pressure | No info |
| Connector Type | 3-pin |
| Noise Level | 33 dBA |
Buy StarTech.com 70mm TX3 Dual Ball Bearing Fan
GELID Silent 7 Fan
A good 70mm Silent Case Fan from GELID solutions. The fan is a bit thicker at 15mm and comes with Hydro Dynamic Bearing. It has a relatively lower speed of 2200 RPM but even then it generates a high airflow of 19.8 CFM and static pressure of 2.6 mmH2O. GELID Silent 7 Fan comes with a 3-pin connector and is pretty silent at 21.8 dBA. It can be used as a 70mm CPU fan, Case fan, or for cooling other devices and components.
| GELID Silent 7 Fan Specifications | |
| Fan Size | 70x70x15 |
| Bearing Type | Hydro Dynamic Bearing |
| Fan Speed | 2200 RPM |
| Airflow | 19.8 CFM |
| Static Pressure | 2.6 mmH2O |
| Connector Type | 3-pin |
| Noise Level | 21.8 dBA |
Nexus 70mm Real Silent Case Fan
[Best Silent 70mm Fan]
A very silent 70mm fan that has a maximum noise level rating of 19.8 dBA only. The fan is on the thicker side with 25mm thickness, which is generally the standard thickness for 80mm, 120mm, and 140mm fans. The fan comes with Sleeve bearing and a 3-pin connector. It spins at speed of 2400 RPM and generates a high airflow of 21.1 CFM. Due to this thicker size, it is best suited as a case fan in small form factor PCs and servers.
| Nexus 70mm Real Silent Case Fan Specifications | |
| Fan Size | 70x70x25 mm |
| Bearing Type | Sleeve bearing |
| Fan Speed | 2400 RPM |
| Airflow | 21.1 CFM |
| Static Pressure | No info |
| Connector Type | 3-pin |
| Noise Level | 19.8 dBA |
Buy Nexus 70mm Real Silent Case Fan
APEVIA 70mm Black Case Fan
[Cheap 70mm Fans, Pack of 3 Fans]
Here we have a 25mm thick APEVIA 70mm Black Case Fan. The fan rotates at speed of 2200 RPM and generates airflow of 19.7 CFM, and Static pressure of 1.58 mmH2O, which are pretty good figures for a 70mm silent fan. It uses a 3-pin connector and a 3-pin to 4-pin Molex connector comes bundled with the fan. Due to its thicker size, the fan is generally suited for PC case cooling and DIY projects. It comes in a pack of three and is the cheapest 70mm fan on the market right now.
| APEVIA 70mm Black Case Fan Specifications | |
| Fan Size | 70x70x25mm |
| Bearing Type | Sleeve bearing |
| Fan Speed | 2200 RPM |
| Airflow | 19.7 CFM |
| Static Pressure | 1.58mm H2O |
| Connector Type | 3-pin |
| Noise Level | 20.2 dBA |
Buy APEVIA 70mm Black Case Fan
Other 70mm Fans worth checking
- GDSTIME 70x70x15mm Fan [2-pin]
- uxcell 70x70x15mm Case Fan [4-pin PWM]
- uxcell 70x70x15mm Case Fan [3-pin]
See also:
- Best 200mm Case Fans for Bigger PC Cases & Cube Cases
- Best Slim 120mm Fans for PC Case, Radiators & CPU Coolers
- Best Slim 140mm Fans for PC Case, Radiators & CPU Coolers
Final Words
Well, in the end, I would only like to say that I have put my most sincere efforts to list out the best 70mm fans for PC cooling for cooling electronic devices. Also, they can serve as better replacement fans for various devices and components. These fans offer good performance and some of them are very quiet in operation. If you have got any queries or want to suggest something then please leave a comment below.
(*This post may contain affiliate links, which means I may receive a small commission if you choose to purchase through the links I provide (at no extra cost to you). Thank you for supporting the work I put into this site!)
Hello Akshat,
Thank you so much for sharing a review on 50 mm fan while searching his price I landed on your post.
Hello Akshat,
Thank you for a well organized and researched listing. Since this article ran, have you come across any 70 mm, PWM (4-wire), low noise (< 25 dbA) fans? The QuietPC 70 mm is quiet, but, as a 3-wire fan, I can't figure out how to control the speed. I'm using it in a non-computer application, and acquired an inexpensive fan controller, but without the PWM wire, I don't believe I can control it's speed.
I don’t think there is any 70mm fan with 4-pin PWM connector. However, you can control the fan speed by varying voltage. For example if the fan is rated at 12V for full speed, then you can supply 7V to it to reduce its speed.