Be Quiet Silent Loop 3 420mm BW026 Black ARGB AIO CPU Cooler
420mm AIO CPU cooler with 3x140mm Silent Wings 4 PWM ARGB fans (1900 RPM max), 3-chamber pump (1700-3500 RPM), 19.4 dB low noise. Copper cold plate, aluminum radiator. Supports Intel LGA1700/AM5/TR5.
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Superior cooling performance
The be quiet! Silent Loop 3 420mm (BW026) delivers exceptional cooling for high-end CPUs using a powerful 3-chamber pump, high-density copper cold plate, and large aluminum radiator. Equipped with three 140mm Silent Wings 4 PWM fans featuring subtle ARGB lighting, it achieves up to 78.4 CFM airflow and 2.36 mmH2O pressure while maintaining ultra-low noise levels from 19.4 dB(A) at low speeds up to 34.3 dB(A) max[1][2].
Refillable design includes extra coolant for longevity, and it supports modern sockets like Intel LGA1700/LGA1851 and AMD AM4/AM5/TR4/TR5 with included mounting hardware. The premium black finish and discreet RGB make it ideal for silent, high-performance builds[3][4].
- 3x 140mm Silent Wings 4 ARGB PWM fans (up to 1900 RPM)
- 3-chamber pump (1700-3500 RPM) with refill port
- Noise-optimized: 19.4 dB(A) low / 34.3 dB(A) high
- 420 x 140 x 27mm aluminum radiator, 40cm tubes
- Compatible: Intel LGA115x/1200/1700/1851, AMD AM4/AM5/TR4/TR5
- Includes thermal grease, screws, brackets, extra coolant
| Suitable location | Processor |
| Type | All-in-one liquid cooler |
| Fan diameter | 14 cm |
| Supported processor sockets | Intel LGA1851, LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1200 (Socket H5), LGA 1700, Socket AM4, Socket AM5, Socket TR4, Socket TR5 |
| 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 |
| Pulse-width modulation (PWM) support | Yes |
| Bearing type | Fluid Dynamic Bearing (FDB) |
| Pump connector | 4-pin |
| Quantity per pack | 1 pc(s) |
| Pump motor speed | 3500 RPM |
| Pump motor speed (min) | 1700 RPM |
| Pump motor speed (max) | 3500 RPM |
| Fan speed (max) | 1900 RPM |
| Fan's mean time to failure (MTTF) | 300000 h |
| Product colour | Black |
| Radiator material | Aluminum |
| Base plate material | Copper |
| Number of fans | 3 fan(s) |
| Illumination LED | Yes |
| Illumination colour | Multi |
| LED connector type | 3-pin |
| Fan connector | 4-pin |
| Fan power consumption | 3.6 W |
| LED voltage | 5 V |
| Fan voltage | 12 V |
| Fan current | 0.3 A |
| Width | 140 mm |
| Radiator width | 14 cm |
| Radiator depth | 45.7 cm |
| Radiator height | 2.7 cm |
| Depth | 52 mm |
| Tube length | 40 cm |
| Waterblock width | 8 cm |
| Waterblock depth | 5.6 cm |
| Waterblock height | 9.35 cm |
| Height | 475 mm |
| Weight | 2.01 kg |
| Fan dimensions (W x D x H) | 120 x 120 x 25 mm |
| Cable length | 0.5 m |
| Package width | 204 mm |
| Package depth | 499 mm |
| Package height | 154 mm |
| Package weight | 3.3 kg |
| Sustainability certificates | Triman |
| Warranty period | 3 year(s) |
| Compliance certificates | CE, Federal Communications Commission (FCC), RoHS, UKCA, WEEE |
| Package type | Box |
| Mounting kit | Yes |
| Screws included | Yes |
| Manual | Yes |
| CPU bracket(s) | Yes |
| Thermal grease | Yes |
| Pump design | 3-chamber |