Thermaltake vs DORHEA Case Fans: Which Brand Fits You?
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When comparing thermaltake vs DORHEA case fan options, you look at different cooling needs. Thermaltake offers large 200mm fans for high airflow and quiet operation in standard PC cases. DORHEA provides small 80mm fans designed for specific components like CPU coolers and radiators. Both brands focus on reliable performance, but their physical sizes and intended applications differ significantly. You need to match the fan size to your case or component requirements for proper installation.
Key differences
| Aspect | Thermaltake Pure 20 200mm Case Fan | DORHEA 80mm 2-Pin DC Fans (2-Pack) |
|---|---|---|
| Fan Size | 200mm | 80mm |
| Bearing Type | Long Life Sleeve Bearing | Brushless |
| Max Airflow | Not listed | 41CFM |
| Noise Level | Quiet (described) | 37.9dBA |
| Connector Type | Not listed | 2pin-ph2.5 |
| Max Fan Speed | Not listed | 4500RPM |
Which one should you choose?
Choose Thermaltake Pure 20 200mm Case Fan if
- You need a large 200mm fan for general case ventilation.
- You prefer a fan with a sleeve bearing for long life.
- You want a fan that balances silence with high airflow.
Choose DORHEA 80mm 2-Pin DC Fans (2-Pack) if
- You are cooling a specific component like a CPU radiator.
- You require a small 80mm fan with a 2-pin connector.
- You need a fan with a specified 4500RPM speed rating.
Verdict: Choose the Thermaltake fan if you are building a standard PC case and need large, quiet airflow. Pick the DORHEA fan if you are replacing a small fan on a CPU cooler or radiator and need precise 80mm dimensions.
Thermaltake vs DORHEA Fan Specs
Fan Size
Thermaltake offers 200mm fans, which are significantly larger than standard case fan sizes. These large blades move more air with less noise at lower speeds. DORHEA provides 80mm fans, which are much smaller. You typically find 80mm fans in specific spots like CPU coolers or small radiators. The 200mm size from Thermaltake fits standard chassis bays for high airflow. The 80mm size from DORHEA fits tight spaces or component-specific cooling needs. You choose based on your case layout and component requirements. Larger fans generally run quieter for the same airflow.
Airflow
DORHEA lists a maximum airflow of 41 CFM for its 80mm fans. This is decent for small form factors or dense heatsinks. Thermaltake does not list a specific CFM number in the provided data. However, it describes its 200mm fan as having high airflow due to its large blade area and design. Larger fans typically move more total air than smaller ones. You get a specific number from DORHEA but only a qualitative description from Thermaltake. For raw air volume, the larger Thermaltake unit likely wins, but DORHEA gives you precise metrics.
Noise Level
DORHEA specifies a noise level of 37.9 dBA at its max speed of 4500 RPM. This is relatively loud for a case fan. Thermaltake claims a balance of silence and efficiency. It does not list a specific dBA rating. The 200mm size allows for slower rotation to achieve similar airflow, which usually reduces noise. DORHEA runs very fast to move air, increasing noise. If quiet operation is your priority, Thermaltake’s design philosophy suggests lower noise. You have exact numbers for DORHEA but only general claims for Thermaltake.
Bearing Type
Thermaltake uses a long-life sleeve bearing. This type of bearing is common in case fans and offers good reliability and lifespan. DORHEA describes its fan as a brushless cooling fan. This typically refers to the motor type rather than the bearing. The data does not specify the bearing type for DORHEA. Sleeve bearings are standard for quiet, long-lasting case ventilation. Without specific bearing details for DORHEA, Thermaltake provides a clear specification. You can expect standard performance from the sleeve bearing in Thermaltake fans.
Connector Type
DORHEA uses a 2-pin connector with a 2pin-ph2.5 interface. This is a simple power connection without speed control via the motherboard. You need a separate controller or direct power source. Thermaltake does not list its connector type in the provided data. Most modern case fans use 3-pin or 4-pin PWM connectors for motherboard control. If Thermaltake follows standard practices, it likely offers better integration. DORHEA’s 2-pin setup is basic and less flexible for system management.
Thermaltake or DORHEA: Choose Your Fan
Standard PC case builders needing quiet airflow
The Thermaltake Pure 20 measures 200mm wide, offering high airflow with reduced noise thanks to its large blade design. It uses a long-life sleeve bearing for reliability. The shaved frame allows easier installation in standard chassis. You get a balance of silence and efficiency for your main case vents.
Users cooling small components like CPUs or radiators
The DORHEA fan is a compact 80mm unit, ideal for tight spaces like CPU coolers or small radiators. It delivers 41 CFM of airflow at 4500 RPM. The 2-pin connector makes wiring simple. It is designed to improve airflow for specific electronic components, ensuring your hardware stays cool in constrained areas.
Builders prioritizing component longevity and simple wiring
DORHEA fans feature a simple 2-pin connector and a lifespan of up to 50,000 hours. This durability suits users who want low-maintenance cooling. The 80mm size fits directly onto components like CPU coolers. You get reliable performance without complex mounting or wiring, making it a practical choice for targeted cooling tasks.
The products compared
Thermaltake Pure 20 200mm Case Fan
Best for: High airflow needs in 200mm compatible cases
- Fan Size
- 200mm
- Bearing Type
- Long Life Sleeve Bearing
- Dimensions
- 11.4 × 10 × 12.6 inches
- Weight
- 15 ounces
View on Amazon: Thermaltake Pure 20 200mm Case Fan Affiliate link
This Thermaltake fan uses a 200mm size with a 30mm thickness to deliver high air pressure and airflow. The shaved frame design allows for easier installation in tight spaces, particularly in Thermaltake chassis. It features a long-life sleeve bearing for reliability and operates quietly. You get a balance of silence and efficiency, making it suitable for builds needing strong static pressure without excessive noise.
Pros
- 200mm diameter with 30mm thickness for high airflow
- Shaved frame allows more installation flexibility
- Long-life sleeve bearing for reliability
- Designed to reduce noise while focusing airflow
Cons
- Larger 200mm size requires compatible case mounts
- 30mm thickness may not fit all standard fan slots
- No LED lighting on the black non-LED version
Good fit if
- You need high static pressure for radiators or dust filters
- You are building in a Thermaltake chassis with shaved frame compatibility
- You prefer quiet operation with reliable sleeve bearings
Skip if
- You only have 120mm or 140mm fan mounts available
- You want RGB or LED lighting effects
- You need a standard 25mm thickness for tight spaces
Verdict: Thermaltake Pure 20 200mm Case Fan is a practical option for builders who need high airflow in a larger 200mm form factor. It fits well in cases that support its specific dimensions and shaved frame design.
DORHEA 80mm 2-Pin DC Fans (2-Pack)
Best for: Tight spaces needing direct 2-pin power
- Fan Size
- 80mm
- Max Fan Speed
- 4500RPM
- Max Airflow
- 41CFM
- Noise Level
- 37.9dBA
- Connector Type
- 2pin-ph2.5
- Compatible Device
- Radiator, CPU Cooler
View on Amazon: DORHEA 80mm 2-Pin DC Fans (2-Pack) Affiliate link
This DORHEA fan measures 80mm by 80mm by 25mm. It runs at 4500 RPM with 41 CFM airflow. The noise level reaches 37.9 dBA. It uses a 2-pin connector for direct power. You get two fans per pack. This setup suits tight spaces or older systems needing direct DC connections.
Pros
- High 4500 RPM speed
- 41 CFM airflow
- 25mm thick profile
- Includes two fans
Cons
- No PWM speed control
- High 37.9 dBA noise
- Fixed 12V voltage only
Good fit if
- You need a direct 2-pin connection
- You require a 25mm thick fan
- You want high airflow at 4500 RPM
Skip if
- You need silent operation under 30 dBA
- You require PWM motherboard control
- You need 120mm or larger fans
Verdict: DORHEA 80mm 25mm PC Fan delivers strong airflow for tight spaces. It fits builders needing direct 2-pin power without PWM complexity.
Specifications side by side
| Spec | Thermaltake Pure 20 200mm Case Fan | DORHEA 80mm 2-Pin DC Fans (2-Pack) |
|---|---|---|
| Fan Size | 200mm | 80mm |
| Max Fan Speed | not stated | 4500RPM |
| Max Airflow | not stated | 41CFM |
| Noise Level | not stated | 37.9dBA |
| Connector Type | not stated | 2pin-ph2.5 |
| Bearing Type | Long Life Sleeve Bearing | not stated |
| Compatible Device | not stated | Radiator, CPU Cooler |
| Dimensions | 11.4 × 10 × 12.6 inches | not stated |
| Weight | 15 ounces | not stated |
| Width | not stated | 0.98 inches |
| Height | not stated | 3.15 inches |
| Size | 200mm | not stated |
| Color | Black | 2pcs 12V 2pin |
| Model | CL-F015-PL20BL-A | D15779-1 |
Frequently asked questions
Which brand is better for standard 120mm case airflow?
Neither brand currently lists a standard 120mm fan in this comparison. Thermaltake offers a 200mm model for larger cases, while DORHEA provides 80mm fans for tight spaces. You must check your case specifications carefully. If your chassis requires 120mm units, you may need to look at other options from these brands or competitors that fit your specific mounting requirements.
Does the Thermaltake fan support PWM speed control?
The provided specifications for the Thermaltake Pure 20 do not explicitly list PWM support. It is a 200mm fan designed for high airflow. You should verify the connector type on the actual product box or manual. If your motherboard lacks a 4-pin header for this specific model, you might need an adapter or a different fan that explicitly states PWM compatibility.
Can I use the DORHEA fan for a CPU cooler?
Yes, the DORHEA 80mm fan is compatible with CPU coolers. The data lists CPU Cooler as a compatible device for this specific model. It uses a 2-pin DC connector for direct power. This makes it suitable for older or simpler cooling setups where PWM is not required. Ensure your motherboard has an available 2-pin header for this connection.
What is the thickness of the DORHEA 80mm fan?
The DORHEA 80mm fan has a height of 0.98 inches. This slim profile makes it ideal for tight spaces within a PC case. It is designed to fit in areas where standard thickness fans might not clear surrounding components. This dimension is crucial for builders working with compact cases or specific radiator mounts that require low-profile cooling solutions.
Is the Thermaltake fan suitable for large server cases?
The Thermaltake Pure 20 is designed for 200mm compatible cases. Its large size allows for high airflow, which is useful in larger enclosures. The shaved frame design helps it fit well in specific chassis types. If you are building a server case that supports 200mm fans, this model could meet your high airflow needs effectively.
How many fans come in the DORHEA pack?
The DORHEA product is sold as a 2-Pack. You receive two 80mm fans in the box. This allows you to install a push-pull configuration or cover multiple intake points. The package includes two 12V 2-pin units. This count is helpful for builders who need multiple small fans for consistent airflow in tight spaces.

