PC fans play a critical role in lowering your PC Components and Case temperature by improving the airflow and air pressure inside your PC Case. The most common sizes of PC fans are 120mm and 140mm, and the standard thickness is 25mm. However, some slimmer fans and thicker fans are available for specific use cases, applications, or scenarios. The slimmer PC fans have a thickness of around 15mm for use in Small Form Factor (SFF) PC Cases or in situations where a standard 25mm thick fan cannot fit. On the other hand, fans with 30mm or 38mm thickness are used in high-performance systems or by enthusiasts who demand better cooling for their high-end builds. These thick PC fans deliver higher airflow and significantly higher static pressure, enhancing cooling performance. Also, they are relatively quieter than a standard 25mm fan with comparable airflow and static pressure figures, as thicker fans can deliver good airflow and static pressure while spinning at a lower speed. Below, you can see the difference in thickness between 25mm and 30mm thick fans.
The 30mm thick fans can be used as Chassis fans, on CPU heatsinks, or on the Radiators of AIO Liquid CPU Coolers. Regarding connectivity options, they come with 4-pin PWM connectors or 3-pin connectors. One of the main issues with these fans is that they may not be compatible with some PC Cases and need longer bolts for radiator installation. This post will list some of the best 30mm thick 120mm and 140mm fans for use in PC Cases, Heatsinks, and Radiators.
Best 30mm Thick 120mm Fans
Below are the top 30mm thick 120mm fans for PC.
Phanteks T30-120 Fan
[In-built Fan Profiles/Modes, Excellent Build Quality and Performance, Daisy Chain Support]
Phanteks T30-120 is one of the best and most popular 30mm thick 120mm fans because of its excellent performance, build quality, and features. Phanteks T30-120 looks like an industrial-grade fan and performs like one, and no 25mm thick fan can match its performance. The fan blades and frame are made of glass fiber-reinforced Liquid Crystal Polymer (LCP) for durability and rigidity. The fan has three in-built PWM fan profiles or modes with varying speeds. The three modes are Hybrid, Performance, and Advanced. The Hybrid mode offers semi-passive cooling or 0 RPM mode with a 50% PWM signal for complete silence.
On the other hand, the advanced mode offers the best cooling performance but is noisy. The Performance mode offers balanced performance and noise levels. The maximum fan speed in Hybrid mode is 1200 RPM, 2000 RPM in Balanced Mode, and 3000 RPM in Advanced mode. The desired mode can be selected using a small switch near the fan hub. The fan has a maximum airflow of 101 CFM and a static pressure of 7.37mm H2O. You can check the noise levels, airflow, and static figures for all three modes below.
Phanteks T30-120 fan has a 7-blade design, a powerful 3-phase motor (6 poles), and uses SUNON VAPO bearing for low noise and reliability. The fan supports daisy-chaining using the 4-pin PWM connector. Phanteks T30-120 can be used as a chassis fan (preferably at the front or top panel) and on radiators for enhanced cooling performance. The fan package includes all the necessary accessories, including PWM cables, screws, and 36mm long screws for radiators. The Phanteks T30-120 fan is not cheap, but it is worth the extra price if you want significantly better cooling performance for your system. Highly Recommended!
| Phanteks T30-120 Fan Specifications | |
| Fan Size | 120mm |
| Thickness | 30mm |
| Bearing Type | VAPO Bearing |
| Fan Speed | 1200~3000 ± 10% RPM |
| Airflow | 100.9 CFM |
| Static Pressure | 7.37 mm H2O |
| Noise Level | 39.7 dBA |
| Connector | 4-pin PWM |
| LED Lighting | None |
| Applications | Radiator, PC Case |
| Features | Selectable Three Fan Modes (Hybrid/Performance/Advanced), Glass fiber reinforced LCP (Liquid Crystal Polymer) Construction, Daisy Chain support, Anti-vibration rubber pads at all four corners, powerful 3-Phase motor (6 poles) |
Buy Phanteks T30-120 120mm Fan
Super Flower MEGACOOL 120mm PWM Fan
[Excellent Build and Performance, Wireless Remote Control, Three Fan Modes]
The only 30mm thick fan that comes close to the Phanteks T30-120 Fan in terms of build quality and performance is the Super Flower MEGACOOL 120mm fan. Super Flower is a well-reputed Taiwanese company known for its high-quality power supplies. It also manufactures PC Cooling products and accessories. Just like Phanteks T30-120, Super Flower MEGACOOL 120mm uses Liquid Crystal Polymers (LCP) fiber compound for its construction. Super Flower MEGACOOL 120mm fan has nine fan blades, unlike the seven-blade design of the Phanteks T30-120 fan. Regarding performance, the Super Flower MEGACOOL 120mm fan delivers significantly higher airflow than the Phanteks T30-120 fan but delivers slightly less static pressure.
Super Flower MEGACOOL 120mm Fan uses dual ball bearings for a longer lifespan and durability. The fan delivers a maximum airflow of 152 CFM and 7.14 mmH2O static pressure. The fan has three built-in fan profiles or modes: Low, Middle, and High. The fan is quieter in low mode and offers the best performance, but it is loud in high mode. The desired mode can be selected by a remote that comes with the fan. The remote uses a CR2025 Lithium Coin battery and is magnetic to attach it to the PC Case. The fan speed, airflow, static pressure, and noise levels for all three modes are listed below.
Super Flower MEGACOOL 120mm Fan uses a 3-phase and 12-pole DC motor for extreme performance and reliability. It also has anti-vibration pads at all four corners to reduce noise. The fan can be used as a PC Case fan or on Radiators and CPU Heatsinks. The package includes all necessary screws, cables, cable extensions, and radiator screws. The fan’s model number is SF-PF121-BK. Highly Recommended!
| Super Flower MEGACOOL 120mm Fan Specifications | |
| Fan Size | 120mm |
| Thickness | 30mm |
| Bearing Type | NMB Dual Ball Bearing |
| Fan Speed | 2000~3300 RPM |
| Airflow | 151.87 CFM |
| Static Pressure | 7.14 mmH2O |
| Noise Level | 48.39 dBA |
| Connector | 4-pin PWM |
| LED Lighting | None |
| Applications | Radiator, PC Case / Chassis, CPU Heatsink |
| Features | Liquid Crystal Polymer (LCP) Compound Construction, 3-Phase and 12-Pole motor, Anti-vibration pads at corners, Remote Controller (magnetic) |
Buy Super Flower MEGACOOL 120mm Fan
Antec NOVA 120mm PWM Fan
[Solid Build Quality, Very Good Performance, Built-in 3-Fan Modes, Two Color Options, Daisy Chain support]
Like the two fans mentioned above, Antec NOVA 120 is also a 30mm thick, heavy-duty, industrial-grade fan. The fan is made of industrial-grade Liquid Crystal Polymer (LCP) material and is very sturdy and durable. The fan uses Fluid Dynamic Bearing (FDB) and has a 9-blade design. The maximum airflow of the fan is 95 CFM, and the maximum static pressure is 6.56 mm H2O.
Like Phanteks T30-120 and Super Flower MEGACOOL 120mm fans, Antec NOVA 120mm fan also features three in-built PWM fan profiles or modes for different requirements. The desired mode can be selected via a fan speed controller integrated with the PWM fan cable. The three modes are H, M, and L, each having its top speed limit. However, one thing common in all modes is that the fan stops spinning when the PWM signal is below 6 percent, enabling semi-passive cooling functionality. The fan speed, airflow, static pressure, and noise levels for different modes are listed below.
The fan supports Daisy chaining and PWM sharing technology and multiple fans can be controlled using one PWM connection. It can be used as a PC Case fan and on Radiators and CPU Heatsinks. The fan package includes all the necessary cables, extensions, and screws. It is available in two colors, black and white. Regarding price, the Antec NOVA 120 is cheaper than the Phantek T-30 and Super Flower Megalcool. The model number of the fan is NOVA 12025.
| Antec NOVA 120mm PWM Fan Specifications | |
| Fan Size | 120mm |
| Thickness | 30mm |
| Bearing Type | Fluid Dynamic Bearing (FDB) |
| Fan Speed | 1500 ~ 3200 RPM |
| Airflow | 95.32 CFM |
| Static Pressure | 6.56 mmH2O |
| Noise Level | 38.7 dBA |
| Connector | 4-pin PWM |
| LED Lighting | None |
| Applications | Radiators, PC Case, CPU Heatsink |
| Features | Liquid Crystal Polymer (LCP) Construction, 3-phase 6 pole motor, Dust-proof design, 8 Anti-vibration rubber pads, PWM Sharing Technology and Daisy Chain support, 3 Fan Modes or PWM Fan Profiles |
Corsair RS120 MAX 120mm PWM Thick Fan
[Quiet operation, Good Performance, Zero RPM Mode, Solid Build Quality]
Corsair has also developed its 30mm thick fans lineup with the RS MAX series, including Corsair RS120 MAX and Corsair RS140 MAX fans. The Corsair RS120 MAX is a 120mm fan, and the Corsair RS140 MAX is a 140mm fan, both having a thickness of 30mm. Corsair RS120 MAX 120mm PWM Thick Fan is constructed from glass fiber-reinforced liquid crystal polymer (LCP) that gives it excellent rigidity and durability. The fan uses Corsair’s Magnetic Dome bearing, which minimizes noise and has a longer lifespan. The fan has a maximum speed of 2000 RPM and generates airflow of 72 CFM and 4.2 mmH2O static pressure. The fan’s maximum noise level stands at 29.5 dBA, which is on the quieter side. Anti-vibration rubber pads are installed at all four corners to reduce vibrational noise. The fan also features Zero RPM mode for semi-passive cooling operation.
The fan features a 7-blade design, and the Anti-Vortex stator vanes behind the fan blade, focus airflow into a tight cone for more effective cooling as a PC Case fan or better heat dissipation as a radiator fan. The airflow and static pressure figures of Corsair RS120 MAX may fall short of the above three fans from Phanteks, Megacool, and Antec, but if you are looking for a high-quality 30mm thick quieter fan with balanced performance, then Corsair RS120 MAX is a perfect choice.
| Corsair RS120 MAX 120mm PWM Thick Fan Specifications | |
| Fan Size | 120mm |
| Thickness | 30mm |
| Bearing Type | Magnetic dome bearing |
| Fan Speed | 425 – 2000 RPM |
| Airflow | 72 CFM |
| Static Pressure | 4.2mm H2O |
| Noise Level | 29.5 dBA |
| Connector | 4-pin PWM |
| LED Lighting | None |
| Applications | Radiators, PC Case, CPU Heatsink |
| Features | Liquid Crystal Polymer construction, AirGuide technology for concentrated cooling, Anti-vibration rubber pads at corners. |
Buy Corsair RS120 MAX 120mm PWM Thick Fan
Other 30mm Thick 120mm Fans
- Antec STORM T3 120 Fan [Budget 30mm Thick 120mm Fan]
- Phanteks D30-120 D-RGB Fan [RGB 30mm Thick 120mm Fan]
Best 30mm Thick 140mm Fans
Below are the top 30mm thick 140mm fans for PC.
Super Flower MEGACOOL 140mm PWM Fan
[Excellent Build and Performance, Wireless Remote Control, Three Fan Modes, Much Higher Airflow]
The Super Flower MEGACOOL 140mm Fan is the bigger version of the Super Flower MEGACOOL 120mm Fan. It has the same build quality and all the features of the MEGACOOL 120mm fan, but it has different fan speed, airflow, and static pressure. The Super Flower MEGACOOL 140 has a lower fan speed than the Super Flower MEGACOOL 120 and lower airflow and static pressure.
The Super Flower MEGACOOL 140mm fan also has three fan modes, and the fan speed, airflow static pressure, and noise levels in different modes are listed below. The fan can be used on Radiators and PC Cases, and its model number is SF-PF141-BK.
| Super Flower MEGACOOL 140mm Specifications | |
| Fan Size | 140mm |
| Thickness | 30mm |
| Bearing Type | NMB Dual Ball Bearing |
| Fan Speed | 1800 ~ 2700 RPM |
| Airflow | 175.03 CFM |
| Static Pressure | 5.54 mmH2O |
| Noise Level | 50.59 dBA |
| Connector | 4-pin PWM |
| LED Lighting | None |
| Applications | Radiators, CPU Heatsinks, PC Case |
| Features | Liquid Crystal Polymer (LCP) Compound Construction, 3-Phase and 12-Pole motor, Anti-vibration pads at corners, Remote Controller (magnetic) |
Buy Super Flower MEGACOOL 140mm PWM Fan
Corsair RS140 MAX 140mm PWM Thick Fan
[Silent operation, Good Performance, Zero RPM Mode, Excellent Build Quality]
The Corsair RS140 MAX Fan is the 140mm version of the Corsair RS120 MAX 120mm fan. It has the same build quality and features as the Corsair RS120 MAX fan. The Corsair RS140 MAX Fan has a lower fan speed than the Corsair RS120 MAX Fan, but has significantly higher airflow. However, the static pressure of the Corsair RS140 MAX Fan is considerably lower than that of the Corsair RS120 MAX Fan. The noise level of the Corsair RS140 MAX Fan is slightly higher than that of the 120mm one. Corsair RS140 MAX Fan can be used in PC Cases or on Radiators.
| Corsair RS140 MAX 140mm PWM Thick Fan Specifications | |
| Fan Size | 140mm |
| Thickness | 30mm |
| Bearing Type | Magnetic dome bearing |
| Fan Speed | 400 – 1600 RPM |
| Airflow | 104 CFM |
| Static Pressure | 2.4 mm H2O |
| Noise Level | 31 dBA |
| Connector | 4-pin PWM |
| LED Lighting | None |
| Applications | Radiators, PC Case, CPU Heatsink |
| Features | Liquid Crystal Polymer construction, AirGuide technology for concentrated cooling, Anti-vibration rubber pads at corners |
Buy Corsair RS140 MAX 140mm PWM Thick Fan
Antec Storm T3 140 Fan
[Budget Pricing, Good Performance, Daisy Chain support, Quiet]
A very good budget 30mm thick 140mm fan from Antec. Antec Storm T3 140 Fan comes with fluid dynamic bearing (FDB) and has a maximum speed of 1500 RPM. The fan generates an airflow of 112.72 CFM and a static pressure of 2.29 mmH2O. The fan is quieter and has a maximum noise level rating of 33.69 dBA. It uses a 4-pin PWM connector and supports Daisy Chaining through 3-pin connectors. The fan’s build quality is good, and rubber pads are installed at all corners to reduce vibrations and noise associated with it. The fan features a Spiral Shuriken Frame Style design and is available in black color. It is an excellent budget 30mm thick 140mm fan, especially if you buy the triple pack.
| Antec Storm T3 140 Fan Specifications | |
| Fan Size | 140mm |
| Thickness | 30mm |
| Bearing Type | FDB Bearing |
| Fan Speed | 600 – 1500 RPM |
| Airflow | 112.72 CFM |
| Static Pressure | 2.29 mmH2O |
| Noise Level | 33.69 dBA |
| Connector | 4-pin PWM |
| LED Lighting | None |
| Applications | Radiators, PC Case, CPU Heatsink |
| Features | 6mm Anti-vibration Rubber Pads at corners, Daisy Chain support, Air Concentrating Design, Spiral Shuriken Frame Style |
Buy Antec Storm T3 140 140mm Fan
Other 30mm Thick 140mm Fans
- Phanteks D30-140 D-RGB Fan [RGB 30mm Thick 140mm Fan]
Final Words
Well, there is no doubt that most 30mm thick fans offer industrial-grade performance and better cooling than the standard thickness 25mm fans. Some 30mm thick fans are expensive, but if you want to increase cooling performance significantly, the cost should not be an issue. When buying a 30mm thick fan, you should ensure that you have enough clearance for it inside your PC Case and it does not interfere with nearby components or cause any obstruction. Generally, 30mm thick 120mm fans have higher static pressure than 140mm fans, but the 140mm ones have higher airflow than 120mm fans. So, if you want more airflow in your PC Case, you should go for thick 140mm fans, but if you want more static pressure, thick 120mm fans should be preferred. If you have any doubts or queries regarding 30mm thick fans, please let me know in the comment section 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!)
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