Whats the cfm of this fan?

The output, converted from 9.4 m3/h is just 5.5 cfm, very low indeed.

What is the mtbf. How many hours of life can I expect from one of these?

Not sure about the Mtbf, but i purchased 2 of this in Jan 2020, and they have been running 24/7 till now with no problems. Installed them in my 2 poe+ switches

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🌀 Stay cool, stay silent — the pro’s choice for sleek, efficient airflow

COMPACT 40 X 20 MM DESIGN - Perfect fit for 1U servers, NAS, routers & tight spaces
VERSATILE CONNECTIVITY - Omnijoin adapter for seamless fan strip integration
COMPLETE INSTALLATION KIT - Anti-vibration mounts, screws & extension cable included
WHISPER QUIET PERFORMANCE - Advanced acoustic optimization keeps noise minimal
AWARD WINNING AERODYNAMICS - Flow Acceleration Channels boost cooling efficiency

The Noctua NF-A4x20 FLX is a premium 40x20mm computer case fan engineered for high-performance cooling in compact environments. Delivering up to 5000 RPM with ultra-quiet 14.9 dB noise levels, it features award-winning aerodynamic design and comes with a full accessory kit including anti-vibration mounts and extension cables, making it ideal for 1U servers, NAS devices, and network hardware.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Reviews

T**N

Just received fan box open and used condition

Just received order supposed to be brand new and seal was broken boxes flap looked like it had been opened and fan is not facing the display boxes opening at front. it’s upside down and the anti vibration mount is bent out of pack and looks damaged

2.12.2024

Manufacturer	Noctua
Part number	NF-A4x20 FLX
Item Weight	170 g
Product Dimensions	4 x 4 x 2 cm; 170 g
Item model number	NF-A4x20 FLX
Material	Plastic
Voltage	12 Volts
Item Package Quantity	1
Air Flow Capacity	9.4 Cubic Metres Per Hour
Noise Level	14.9 Decibels
Included components	1
Batteries included?	No
Batteries Required?	No

Noctua NF-A4x20 FLX Computer Case Fan - Cooling Components (Computer Case, Fan, 4 cm, 3700 RPM, 5000 RPM, 4400 RPM)

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