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Next-working-day delivery. Order before 17:30 (England & Wales) or 16:00 (Northern Ireland, Republic of Ireland, Scotland) to receive next-working-day delivery. Orders placed before 17:30 Friday are delivered Monday; after 17:30 Friday arrive Tuesday. Upgrades — pre-9, pre-10:30, pre-noon, special and secure bulk — available at extra cost.

Orders over £100 (ex VAT) receive FREE next-working-day delivery across the UK.

Instant digital delivery. Software licences, subscriptions, warranties & insurance, and electronic copies are delivered the same day via email — provided a valid email address is entered at checkout.

Currently Unavailable

This product is out of stock

We can email you when it's back in stock, confirm expected lead times, or recommend in-stock alternatives that meet the same requirements.

See Alternatives Email Sales 0161 464 9941

BeQuiet FANS

Manuf P/N: BL099

be quiet! SILENT WINGS PRO 4 | 140mm PWM. Type: Fan, Fan diameter: 14 cm, Rotational speed (max): 2400 RPM, Airflow: 165.5 m³/h, Maximum air pressure: 3.64 mmH2O, Bearing type: Fluid Dynamic Bearing (FDB). Voltage: 7 - 13.2 V. Width: 140 mm, Depth: 140 mm, Height: 25 mm. Product colour: Black

Optimized fan blades for the highest performance on radiators and heat sinks
Speed switch allows changing maximum PWM speed between medium-speed, high-speed and ultra-high-speed (up to 2400 rpm)
Small tip clearance and a fan frame with a funnel-shaped air outlet for extremely high air pressure
Virtually inaudible operation at regular speed
6-pole fan motor for less vibration and power consumption
Fluid-dynamic bearing enables very smooth operation
Individual and easy mounting systems for use as a case fan or with a radiator
Super-long life-span of up to 300,000h
Valuable sleeved PWM cable and easy to install PWM connector
Elegant look with high-grade fan sticker in an all-black design

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Sales & Technical

Phone: 0161 464 9941

Email: sales@apaxon.co.uk

Manufacturer Warranty

Manufacturer warranty applies. Warranty periods and service levels vary by brand and product type.

Apaxon® is an authorised reseller of BEQUIET. Warranty claims, repairs, replacements, and credits are fulfilled strictly in accordance with the manufacturer's terms and conditions.

Returns Policy

Business & Consumer Purchases

Orders placed for business use, resale, or onward supply are treated as Business-to-Business (B2B) transactions. B2B sales do not carry an automatic right of cancellation.

Nothing in this policy affects statutory consumer rights under UK law.

Consumer Cancellation (B2C Only)

Consumers may cancel within 14 days of delivery under the Consumer Contracts Regulations 2013.
Cancellation must be confirmed in writing within 14 days of delivery.
Goods must be returned within 14 days of cancellation.
Items must be unused beyond reasonable inspection and in resaleable condition.
Return shipping costs are the customer's responsibility.
Prepaid return labels are not provided for change-of-mind returns.
Refunds are processed after inspection and issued to the original payment method.

Faults & Delivery Issues

Transit damage or shortages must be reported within 48 hours of delivery.
Visible defects must be reported within 7 days of delivery.
Hidden faults must be reported within 7 days of discovery.
Returns require prior authorisation and a valid RMA reference.
Failure to report within these timeframes may affect eligibility for return or claim.

Business Returns (B2B)

Business customers do not have an automatic right to return non-faulty goods.