Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Technical details | |
| Bearing technology | SSO2 |
| Weight & dimensions | |
| Weight | 20 g |
| Cable length | 0.3 m |
| Height | 40 mm |
| Width | 40 mm |
| Depth | 20 mm |
| Energy management | |
| Power consumption (typical) | 0.5 W |
| Rated current | 0.1 A |
| Voltage | 5 V |
| Packaging content | |
| Mounting kit | ![]() |
| Screws included | ![]() |
| Other features | |
| Power requirements | 5 V |
| Connector(s) | 4-pin PWM |
| Mounting hole pattern (W x D) | 32 x 32 mm |
| Design | |
| Number of fans | 1 fan(s) |
| Fan connector | 4-pin |
| Illumination LED | ![]() |
| Performance | |
| Type | Fan |
| Mean time between failures (MTBF) | 150000 h |
| Speed detection | ![]() |
| Airflow | 9.4 m³/h |
| Fan diameter | 4 cm |
| Suitable location | Computer case |
| Maximum air pressure | 2.26 mmH2O |
| Noise level (high speed) | 14.9 dB |
| Rotational speed (max) | 5000 RPM |
| Rotational speed (min) | 1100 RPM |
| Pulse-width modulation (PWM) support | ![]() |
| Features | |
| Product type | Case fan |
| Logistics data | |
| Harmonized System (HS) code | 84733080 |
| EAN | 9010018100136 |
The Noctua NF-A4x20 5V PWM is a specialized 40x20mm fan designed for applications that utilize a 5V power source. It connects via a 4-pin PWM header, enabling precise rotational speed adjustments based on thermal requirements from a compatible motherboard or fan controller. At its core, the fan is constructed with Noctua's SSO2 bearing, which is engineered for high operational stability and long-term reliability. This model is intended for system integrators and builders working with compact hardware like 1U servers, network devices, or embedded systems.
Regarding performance, the fan can reach a maximum speed of 5000 RPM, producing an airflow of 5.53 CFM and a static pressure of 2.26 mmH2O. This pressure level is effective for moving air through dense heatsinks, fine-mesh filters, or other obstructions common in small enclosures. Its acoustic output is rated at 14.9 dB at full speed, allowing for quiet operation in noise-sensitive environments. The package includes anti-vibration mounts to further reduce operational noise and an OmniJoin adaptor set for connecting to proprietary fan headers.
Key Features:- Operates on a 5V power input with 4-pin PWM control
- Features a compact 40x20mm frame for small enclosures
- Built with an SSO2 bearing for increased stability and longevity
- Provides up to 5.53 CFM of airflow at 5000 RPM
- Generates 2.26 mmH2O of static pressure for restricted spaces
- Produces a maximum noise level of 14.9 dB
Estimated delivery: 14.04 - 20.04
Today: Closed
Estimated delivery: 14.04 - 20.04
Today: Closed (Easter Sunday)
Estimated delivery: 14.04 - 20.04
Today: Closed
Estimated delivery: 14.04 - 20.04
Today: Closed
Estimated delivery: 14.04 - 20.04
Today: Closed
Estimated delivery time: 14.04 - 20.04
Estimated delivery time: 14.04 - 19.04
Estimated delivery time: 15.04 - 20.04
Estimated delivery time: 15.04 - 20.04
Estimated delivery time: 15.04 - 19.04
Estimated delivery time: 14.04 - 20.04
Estimated delivery time: 14.04 - 20.04
Estimated delivery time: 15.04 - 19.04


