Thermalright 80mm PWM Cooling Fan Review (2026): A Spec-Based Look

What stands out

• 80mm size with 34 CFM max airflow
• 2200 RPM max speed with PWM control
• S-FDB V2 bearing for durability
• 24 dBA noise rating
• Vibration damping pads

Who it fits

Key specs explained for this fan

Fan Size: 80mm

This 80 by 80 by 25 millimeter footprint fits compact builds or specific CPU coolers. You should check your case or cooler clearance before buying. Smaller fans often struggle with airflow compared to 120mm or 140mm units. Use this size only if space is tight or the design requires it. It is not a standard replacement for larger case fans.

Max Fan Speed: 2200 RPM

The motor spins up to 2200 revolutions per minute. Higher speed moves more air but increases noise. You will get strong cooling performance at this peak. However, the fan will be louder than slower models. Compare this to standard 120mm fans that usually spin slower. This high speed is necessary for the small 80mm blade area to remain effective.

Max Airflow: 34 CFM

This measures 34 cubic feet of air per minute. It indicates how much air the fan moves. You get decent cooling for the small size. Larger fans often exceed 100 CFM. You should expect lower total air movement here. This spec suits focused cooling tasks rather than general case ventilation. Compare it with other 80mm fans to ensure it meets your thermal needs.

Noise Level: ≤24 dBA

The fan stays at or below 24 decibels. This is a quiet operation level. You can run it in a bedroom or office without distraction. Lower numbers are better for silence. Compare this to louder fans that exceed 30 dBA. The vibration damping pads help keep noise down. You get a silent experience while maintaining cooling performance.

Build details and layout

The listing describes the Thermalright TL-B8 as a compact 80 by 80 by 25 millimeter fan. It weighs 3.53 ounces. These dimensions fit small cases or specific CPU coolers. You must verify clearance before installation. The 80mm size limits airflow compared to larger 120mm or 140mm options. This makes it a niche choice for tight spaces.

The fan uses a 4-pin PWM connector. This allows automatic speed control based on motherboard temperature. The listing states a maximum speed of 2200 RPM. At this speed, the fan moves 34 CFM of air. It generates a static pressure of 2.7 mmH2O. This pressure helps push air through dense heatsinks. The 4-pin interface ensures compatibility with modern motherboards that support PWM control.

Vibration damping pads surround the fan frame. These pads reduce friction noise during rotation. The listing highlights S-FDB V2 bearings. These bearings aim to minimize noise while extending fan life. The design focuses on quiet operation. You get a balance of cooling performance and low sound. The build targets users who need small fans that run quietly. The specs suggest it works well in confined areas where noise matters.

Setup and daily use guide

Installation begins with connecting the four-pin PWM cable to your motherboard. This interface allows the system to automatically adjust the fan speed based on real-time temperature readings. You do not need manual voltage controllers or external hubs. The fan operates within a range of zero to 2200 RPM. At maximum speed, it moves 34 CFM of air. This airflow is modest, so you should use it where high static pressure is less critical than volume. The 2.7 mmH2O static pressure rating suggests it works best with open grilles or thin radiators rather than dense filters. Daily operation relies on the S-FDB V2 bearings. This bearing type reduces friction, which helps keep noise levels at or below 24 dBA. The listing notes four vibration damping pads around the fan frame. These pads minimize physical resonance during rotation. You should expect quieter operation compared to fans without such damping, especially as speeds increase. The compact 80 by 80 by 25 millimeter size means it fits specific CPU coolers or small case locations. Verify your clearance before mounting. The 4-pin connector ensures compatibility with standard motherboard headers that support PWM control. This setup requires no additional software. The motherboard handles all speed adjustments. The fan runs silently at low loads and ramps up when temperatures rise. This automatic behavior means you do not need to intervene. The design prioritizes stable performance in tight spaces. It suits users who need precise cooling for compact builds without managing complex wiring.

Before you buy this fan

You should verify that your motherboard has an available four-pin PWM header. This fan relies on automatic speed control based on temperature readings. Without this connection, you cannot utilize the full performance range. The eight by eight by two point five centimeter size fits specific CPU coolers or tight spaces. Check your case clearance carefully. Smaller fans like this often move less air than twelve centimeter or fourteen centimeter models. You may need multiple units for adequate cooling in a standard case. The S-FDB V2 bearings suggest durability, but you should keep the area clean. Dust buildup can reduce airflow and increase noise. This fan suits builds where space is limited. It does not replace larger fans in open cases. Consider your total airflow needs before adding this to your cart. It works best in constrained environments where larger options do not fit.

Check before you buy

• Confirm motherboard has a 4-pin PWM header for speed control
• Verify 80mm fan clearance in your case or CPU cooler
• Check if you need multiple fans for adequate airflow
• Ensure you can access the fan for regular dust cleaning

The product at a glance

1

Thermalright 80mm PWM Cooling Fan

Best for: quiet 80mm CPU cooling setups

Fan Size

80mm

Max Fan Speed

2200 RPM

Max Airflow

34 CFM

Static Pressure

2.7 mmH2O

Noise Level

≤24 dBA

Connector Type

4-pin PWM

View on Amazon: Thermalright 80mm PWM Cooling Fan Affiliate link

The Thermalright TL-B8 is an 80mm CPU fan designed for quiet operation and reliable cooling. It features S-FDB V2 bearings and a 4-pin PWM connector for automatic speed control up to 2200 RPM. With a maximum airflow of 34 CFM and noise levels at or below 24 dBA, it suits builds prioritizing silence. The compact 80x80x25mm frame fits standard 80mm mounts.

Pros

• 4-pin PWM connector for motherboard speed control
• S-FDB V2 bearings for durability and low noise
• Maximum airflow of 34 CFM at 2200 RPM
• Noise level rated at 24 dBA or lower

Cons

• Lower static pressure of 2.7 mmH2O limits use on dense radiators
• 80mm size restricts compatibility with standard 120mm or 140mm mounts
• No included mounting hardware listed in specifications

Good fit if

• You need a dedicated fan for an 80mm CPU cooler
• You prioritize low noise levels under 25 dBA
• You want automatic speed control via motherboard PWM

Skip if

• You require fans for standard 120mm or 140mm slots
• You need high static pressure for thick radiators
• You prefer fans with included mounting screws

Verdict: Thermalright TL-B8 80mm CPU Fan fits users who need a quiet, small-form-factor fan for specific 80mm cooling setups. It delivers reliable airflow with minimal noise, making it a solid option for compact builds.

Specifications side by side

Frequently asked questions

See also

• thermalright tl b8 CPU fan PC case alternatives
• best thermalright case fans with 120mm
• thermalright tl 9015 CPU fan review
• thermalright fw240 black CPU aio review