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header-product All-in-one liquid cooler be quiet! Silent Loop 3 420 mm 14 cm Black
149.99 €

All-in-one liquid cooler be quiet! Silent Loop 3 420 mm 14 cm Black

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All-in-one liquid cooler be quiet! Silent Loop 3 420 mm 14 cm Black

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All-in-one liquid cooler be quiet! Silent Loop 3 420 mm 14 cm Black

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Usual Price: 167.49 €
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The discount is valid from 01.06.2026 to 01.07.2026

Short description

The be quiet! Silent Loop 3 is a 420 mm all-in-one liquid cooler designed for high-performance cooling. It features a 14 cm fan diameter, airflow of 133.2 m³/h, and a maximum air pressure of 2.36 mmH2O. The Fluid Dynamic Bearing ensures quiet operation, making it ideal for silent builds. With a sleek black design, it fits seamlessly into any setup.
Available at price 149.99 €: 1 pcs.
Total available for order: 224 pcs.
Warranty: 2 Years
SKU: 11337963
Manufacturer: bequiet!
delivery
to the Customer Service Center at Kengaraga 2b, Riga
29.06.2026 {{selectedOffer.officeDeliveryString}}
free
Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
29.06.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
02.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 3.14 kg)
Parcel couriers
Latvijas Pasts pakomāts / Unisend / DPD Paku skapis / Omniva / Venipak Pickup / Venipak Locker / Latvijas Pasts nodaļa
02.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 4.17 euros per month
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Product information

Description

be quiet! Silent Loop 3 420 mm is an all-in-one liquid cooler designed for high-performance CPU cooling with a 420 mm radiator and 140 mm fans. The unit combines advanced cooling technology and quiet operation thanks to a fluid dynamic bearing and carefully engineered components. Its black finish fits modern PC builds seeking a balance of effective thermal management and low noise.

Advantages

The Silent Loop 3 offers efficient heat dissipation across a large 420 mm radiator while maintaining low acoustic levels. Its 140 mm fan design provides substantial airflow (133.2 m³/h) and a maximum air pressure of 2.36 mmH2O for consistent cooling performance. The included fluid dynamic bearing reduces operational noise and extends fan lifespan. The cooler is pre-assembled as an all-in-one solution for straightforward installation and compact cable management.

Suitable for (tasks / use cases)

  • High-performance gaming PCs requiring sustained CPU cooling
  • Workstations and content-creation rigs with heavy multi-threaded loads
  • Silent or low-noise system builds
  • Systems using LGA 1700, AM4, AM5 or other supported CPU sockets

Key specifications

  • Type: All-in-one liquid cooler
  • Radiator size: 420 mm
  • Fan diameter: 140 mm
  • Airflow: 133.2 m³/h
  • Maximum air pressure: 2.36 mmH2O
  • Bearing type: Fluid Dynamic Bearing
  • Supported sockets: LGA 1150, LGA 1151, LGA 1155, LGA 1200, LGA 1700, Socket AM4, Socket AM5, Socket TR4
  • Weight: 2.01 kg
  • Colour: Black

How to use

Install the Silent Loop 3 by mounting the 420 mm radiator into compatible case radiator positions and attaching the 140 mm fans in the recommended push or pull configuration. Secure the pump/block assembly to the CPU socket using the provided mounting hardware for your specific socket type. Connect fan and pump power cables to the appropriate motherboard headers or controller, and verify pump and fan operation in BIOS or with monitoring software before full system operation.

Usage recommendations

For optimal performance, ensure good case airflow with clear intake and exhaust paths, check that the case supports a 420 mm radiator, and verify socket compatibility before purchase. Periodically inspect fan operation and radiator fins for dust accumulation and clean as needed to maintain cooling efficiency.

Specifications

Type:
All-in-one liquid cooler
Fan diameter:
140 mm
Weight:
2.01 kg
Supported processor sockets:
LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1200 (Socket H5), LGA 1700, Socket AM4, Socket AM5, Socket TR4
Product colour:
Black
All features

Performance

Type:
All-in-one liquid cooler
Fan diameter:
140 mm
Supported processor sockets:
LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1200 (Socket H5), LGA 1700, Socket AM4, Socket AM5, Socket TR4
Noise level (low speed):
19.4 dB
Noise level (high speed):
34.3 dB
Maximum airflow:
78.4 cfm
Airflow:
133.2 m³/h
Maximum air pressure:
2.36 mmH2O
Bearing type:
Fluid Dynamic Bearing (FDB)
Pulse-width modulation (PWM) support:
Yes
Suitable location:
Processor
Pump motor speed (max):
3500 RPM
Pump motor speed:
3500 RPM
Pump motor speed (min):
1700 RPM
Fan speed (max):
1900 RPM
Quantity per pack:
1 pc(s)
Pump connector:
4-pin
Fan's mean time to failure (MTTF):
300000 h

Design

Product colour:
Black
Illumination colour:
Multi
Number of fans:
3 fan(s)
Base plate material:
Copper
Fan connector:
4-pin
Radiator material:
Aluminum
Illumination LED:
Yes
LED connector type:
3-pin

Weight & dimensions

Cable length:
0.5 m
Weight:
2.01 kg
Package weight:
3300 g
Height:
475 mm
Width:
140 mm
Depth:
52 mm
Package depth:
499 mm
Package height:
154 mm
Package width:
204 mm
Radiator width:
140 mm
Radiator depth:
457 mm
Radiator height:
27 mm
Tube length:
400 mm
Fan dimensions (W x D x H):
120 x 120 x 25
Waterblock width:
80 mm
Waterblock depth:
56 mm
Waterblock height:
93.5 mm

Technical details

Sustainability certificates:
Triman
Warranty period:
3 year(s)
Compliance certificates:
CE, Federal Communications Commission (FCC), RoHS, UKCA, WEEE

Power

Fan voltage:
12 V
Fan current:
0.3 A
Fan power consumption:
3.6 W
LED voltage:
5 V

Packaging content

Manual:
Yes
Package type:
Box
Mounting kit:
Yes
Screws included:
Yes
CPU bracket(s):
Yes

Other features

Thermal grease:
Yes

Logistics data

Shipping (inner) case width:
424 mm
Shipping (inner) case length:
511 mm
Shipping (inner) case height:
336 mm
Shipping (inner) case gross weight:
14800 g
Products per shipping (inner) case:
4 pc(s)

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Stock data
Warehouse Stock Delivery to the store Store Price
WH113 1 29.06.2026
Discount 10%
149.99 €
EU16 39 29.06.2026 156.99 €
EU57 21 26.06.2026 157.49 €
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Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH345 3 29.06.2026 150.49 €
EU9 56 29.06.2026 169.49 €
WH109 64 13.07.2026 170.49 €
Discount 10%
149.99 €
Stock: 1
Delivery Date: 29.06.2026
Warehouse: WH113
156.99 €
Stock: 39
Delivery Date: 29.06.2026
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157.49 €
Stock: 21
Delivery Date: 26.06.2026
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166.49 €
Stock: 4
Delivery Date: 29.06.2026
Warehouse: WH337
171.99 €
Stock: 4
Delivery Date: 22.06.2026
Warehouse: EU1
Discount 10%
174.49 €
Stock: 10
Delivery Date: 29.06.2026
Warehouse: WH94
177.49 €
Stock: 7
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Warehouse: BT19
179.99 €
Stock: 8
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184.49 €
Stock: 7
Delivery Date: 29.06.2026
Warehouse: WH334
Available only for legal entities
150.49 €
Stock: 3
Delivery Date: 29.06.2026
Warehouse: WH345
169.49 €
Stock: 56
Delivery Date: 29.06.2026
Warehouse: EU9
170.49 €
Stock: 64
Delivery Date: 13.07.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the All-in-one liquid cooler be quiet! Silent Loop 3 420 mm cost, and is it available for purchase?

The price is 149.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 224 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 29.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can All-in-one liquid cooler be quiet! Silent Loop 3 420 mm be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the All-in-one liquid cooler be quiet! Silent Loop 3 420 mm online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All bequiet! products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized bequiet! service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: type, fan diameter, weight, supported processor sockets, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for All-in-one liquid cooler be quiet! Silent Loop 3 420 mm?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
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