be quiet! Silent Loop 3 240mm AIO Liquid CPU Cooler BW024
be quiet!
be quiet! Silent Loop 3 240mm AIO Liquid CPU Cooler BW024
The be quiet! Silent Loop 3 is an all-in-one liquid CPU cooler designed for builders who need serious cooling performance without the noise. It combines a highly engineered copper-nickel cold plate, a 3-chamber pump with a 6-pole motor, and two Silent Wings fans to handle demanding CPUs while staying virtually inaudible.
Why this product
1,800 mm² fin area cold plate
The cooling block is engineered with up to 2× the fin area of competing AIO units in its class, improving heat transfer across the entire CPU surface and eliminating hot spots.
3-chamber pump reduces turbulence
A dedicated second chamber acts as a reservoir, allowing coolant to spread evenly before circulation. Combined with the 6-pole motor, this design delivers high performance with minimal noise.
Whisper-quiet operation across the range
Fan noise runs from 18.7 dB(A) at 50% speed up to 36.9 dB(A) at full load, with silence-optimized blades and funnel-shaped outlets designed to keep acoustics down without sacrificing cooling.
240mm radiator with sleeved tubing
The 277 × 120 × 52 mm aluminum radiator fits standard mounting positions, and flexible sleeved tubes make installation straightforward in most builds.
3-year warranty and easy refilling
An accessible refill port and included coolant bottle allow for simple maintenance and extended system lifespan, backed by a full manufacturer's warranty.
- Radiator size240mm
- Included fans2 × Silent Wings 4 120mm PWM
- Max fan speedUp to 2500 RPM
- Fan noise level18.7–36.9 dB(A)
- Pump design3-chamber, 6-pole 3-phase motor
- Cold plate materialCopper / Nickel
- Socket compatibilityIntel LGA 1851/1700/1200/1150/1151/1155; AMD AM5/AM4
- Warranty3 years
- SKUBEQ-925
- EAN4260052192535
- Intel LGA 1851, 1700, 1200, 1150, 1151, 1155 sockets.
- AMD AM5 and AM4 sockets.
- ARGB lighting connector for optional RGB control via motherboard headers.
- Radiator dimensions are 277 × 120 × 52 mm with fans attached; verify case clearance for CPU socket, radiator, and tubing length of approximately 400 mm.
Best for
- High-end gaming and streaming builds needing sustained cooling under load
- Quiet-focused systems where noise levels matter as much as performance
- Builds in mid-tower cases with 240mm radiator mounting and at least 400 mm tube routing space
- Users who value serviceability and can manage periodic coolant top-ups
Trade-offs
- Cases with limited radiator mounting space or less than 277 mm horizontal clearance
- Builds requiring passive cooling or zero-maintenance sealed systems without refill access
- Applications where pump speed exceeds 3500 RPM cannot be exceeded, limiting some extreme overclocking scenarios
Silent Loop 3 240mm is the virtually inaudible and extremely high performing All-in-One water cooling unit with state-of-the-art technology.
The cooling block of Silent Loop 3 240mm is undisputed. The explanation may look complicated, but we owe it to our most loyal fans and all the enthusiasts out there: The cooling block boasts a 1,800 mm² fin area, which is an increase of up to 2x compared to many other AiO's in this class. This greatly improves heat transfer and makes sure to cover all hot spots on the CPU. The large fin area could only be achieved by a specially developed screwless design for attaching the heat plate. The internal design of the flow path takes care that all areas are flowed to evenly to achieve high performance regardless of the CPU platform.
A powerful PWM pump with 3-chamber design ensures the very high-performance of Silent Loop 3 240mm and is whisper-quiet at the same time. The second of its 3 chambers acts as a reservoir and offers enough space for the coolant to spread out and thus reduces turbulences before the liquid leaves the pump unit. In combination with the 6-pole 3-phase motor this results in a smooth and consequently silent operation.
Silent Loop 3 240mm features 2 Silent Wings 4 120mm PWM high-speed fans. These fans feature silence-optimized fan blades and a funnel shaped air outlet, making Silent Wings 4 120mm PWM high-speed a fan that makes no compromises between very quiet operation and highest performance. The corners of the frame are designed to minimize air leakage on radiators.
Silent Loop 3 240mm is a meticulously crafted masterpiece of German engineering. All parts integrated are of highest quality and work as precise as a clockwork, ultimately leading to a cooling performance ready for virtually any situation.
An easy-to-access refill port makes for convenient handling, safe refilling and comfortable maintenance. The coolant bottle included extends the lifespan.
The cooling block's design is iconic and unmistakable. We kept it all-black and elegant to represent the sheer cooling power Silent Loop 3 240mm offers, despite being barely audible. Optionally, you can turn on ARGB LEDs. Silent Loop 3 240mm is a statement in your PC case: you strive for the maximum in any discipline.
General
| Brand | be quiet! |
|---|---|
| Model | Silent Loop 3 240mm |
| Article number | BW024 |
Fan
| Fan model | Silent Wings 4 120mm PWM High-Speed |
|---|---|
| Quantity included | 2 |
| Maximum speed | Up to 2500 RPM |
| Bearing type | Fluid Dynamic Bearing |
| Airflow (single fan) | 76.7 CFM |
| Airflow (combined) | 130.3 CFM |
| Noise level at 50% RPM | 18.7 dB(A) |
| Noise level at 75% RPM | 29.9 dB(A) |
| Noise level at 100% RPM | 36.9 dB(A) |
| Fan lifespan | 300,000 hours at 25°C |
Performance
| Radiator size | 240mm |
|---|---|
| Radiator dimensions with fans | 277 × 120 × 52 mm |
| Radiator material | Aluminum |
| Cold plate / water block material | Copper / Nickel |
| Cold plate dimensions | 93.5 × 80 × 56 mm |
| Cold plate fin area | 1,800 mm² |
| Pump speed range | 1700–3500 RPM (PWM adjustable) |
| Pump design | 3-Chamber, 6-Pole 3-Phase Motor |
| Tubing length | Approximately 400 mm |
| Tubing type | Sleeved |
Acoustics & power
| Lighting | ARGB (pump cap / cooling block) |
|---|---|
| CPU socket compatibility | Intel LGA 1851 / 1700 / 1200 / 1150 / 1151 / 1155; AMD AM5 / AM4 |
| Total weight | 1380 g |
| Warranty | 3-year manufacturer's warranty |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.