Best 70mm & 50mm Fan for PC Case, Heatsinks & Electronics [2018 List]

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 in DIY projects. Also, these fans are made by handful of companies that you may never heard of. You won’t find 50mm & 70mm fans from top brands like Noctua, Corsair, Cooler Master but there are some smaller companies that offer pretty good 50mm and 70mm fans.

These 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 over 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 in our list is Scythe Mini Kaze 50mm. It is a basic 50mm fan that comes with Sleeve bearing and has fan speed of 4500 RPM. The fan uses 2-pin connector but a 3-pin adapter is included with it for use with a 3-pin connector on motherboard or with another device. The fan generates airflow of 9.42 CFM which is pretty good figure for a 50mm fan. It is also pretty silent in operation and has noise level rating of 26 dBA only.

Scythe-Mini-Kaze-50mm-Fan

The fan is on the slimmer side and is only 10mm thick, and can be used on Video cards, motherboard chipset or as a replacement fan in projectors, amplifiers, 3D printer or in 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

Buy Scythe Mini Kaze 50mm Fan

Noiseblocker NB-BlackSilentFan 50mm XS-1

[Best Silent 50mm Fan]

If you are looking for a 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 that 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.

Noiseblocker-NB-BlackSilentFan-50mm-Fan

The build quality of the fan is very good as it comes with reinforced fibreglass PBT-frame and for durability it has got 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 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 box, slot 1 CPU cooler, server chassis, graphics cards, PCIe cards, small heatsinks, 3D printers and with other devices.

Note: There is a 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]

A 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 3-pin connector and it comes with sleeved cable for added protection. The fan is on the quieter side having noise rating of 23dBA. Along with high performance, it has got great build quality but it is a bit thicker at 15mm.

GELID-Silent-5-FN-SX05-40-Fan

The fan can be used with variety of devices and components that include PC case, DVR, heatsinks, HDD RAID box, NAS box etc. So, if you are looking 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 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 stands 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 with other electronic components and devices.

Fractal-Design-Silent-Series-R3-50mm-Fan

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 form StarTech.com. The fan comes with ball bearing and has fan speed of 4500 RPM. It generates airflow of 8.63 CFM which is quite good for a cheap fan. The fan is moderately quiet and has 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 motherboard chipset, computer case and can serve as a replacement fan for other devices.

StarTech.com-50x10mm-Fan

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

Buy StarTech.com 50x10mm Fan

GDSTIME 5 Volt 50x10mm Fan

[5 Volt Fan for Raspberry Pi]

If you are looking for as 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 as small fan. It is not that loud nor very silent, as it has moderate noise level rating of 25 dBA. The fan is 10mm in thickness and uses 2-pin Dupont Connector and has wire length of 20cm.

GDSTIME-5-Volt-50x10mm-FanNote: A 12V version of this fan is also available with 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 form StarTech.com. It comes with dual ball bearing and 3-pin connector. The fan rotates at constant speed of 3500 RPM and generates high airflow of 21.33 CFM. It is a rather loud fan and has 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-CPU-Cooler-Fan

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 relatively lower speed of 2200 RPM but even than it generates high airflow of 19.8 CFM and static pressure of 2.6 mmH2O. GELID Silent 7 Fan comes with 3-pin connector and is pretty silent at 21.8 dBA. It can be used as 70mm CPU fan, Case fan or for cooling other devices and components.

GELID-Silent-7-Fan

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

Buy GELID Silent 7 Fan

Nexus 70mm Real Silent Case Fan

[Best Silent 70mm Fan]

A very silent 70mm fan that has 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 3-pin connector. It spins at speed of 2400 RPM and generates 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

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 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 for DIY projects. It comes in pack of three and are the cheapest 70mm fans in the market right now.

APEVIA-70mm-4pin3pin-Black-Case-Fan

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

See also:

Final Words

Well, at 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 very quiet in operation. If you have got any queries or want to suggest something then please leave a comment below.

One Response

  1. niraj November 25, 2018

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