ASUS PROART LC 420 COOLER
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About This Item
- Three-phase motor with Noctua IndustrialPPC fans for quiet operation
- Illuminated meter displays real-time system stats
- Aluminum radiator with copper water block
- Supports LGA 1150, 1151, 1155, 1156, 1200, 1700, AM4, and AM5 sockets
- Maximum airflow of 107 CFM with 182.5 m³/h airflow rate
- Noise level of 31.5 dB for minimal disturbance
- 3 x 140mm fans with 800-2000 RPM range
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ASUS ProArt LC 420 | 420mm AIO Liquid Cooler
The ASUS ProArt LC 420 Processor All-in-one liquid cooler delivers premium thermal performance for content creators who demand both silence and style. This 420mm radiator AIO combines a three-phase motor with Noctua IndustrialPPC fans to deliver exceptional cooling while maintaining a refined, minimalist aesthetic that complements any build.
Slim Specs Table
| Metric | Spec. |
|---|---|
| Radiator Size | 420mm (45.6cm) |
| Fan Configuration | Triple 140mm fans |
| Supported Sockets | LGA 1150/1151/1155/1156/1200/1700, AM4/AM5 |
| Maximum Airflow | 182.5 m³/h (107 CFM) |
| Noise Level | 31.5 dB |
Three-Phase Motor Performance
The ProArt LC 420’s advanced three-phase motor provides superior torque and efficiency compared to traditional single-phase designs. This translates to more precise pump control and consistent coolant circulation, even under heavy multi-core processor loads. Content creators working with 3D rendering, video editing, or complex simulations will appreciate the stable thermal performance that prevents throttling during extended workloads.
Noctua IndustrialPPC Fan Technology
Equipped with three Noctua IndustrialPPC fans, this cooler achieves an exceptional balance between airflow and noise. The fans deliver 182.5 m³/h of total airflow while maintaining just 31.5 dB of noise output. Their high static pressure rating of 4.18 mmH2O ensures effective cooling through the dense radiator fins, making this system ideal for compact cases where airflow resistance is higher.
Illuminated System Monitoring
An innovative illuminated meter on the pump cover provides real-time system statistics including CPU load, temperatures, and fan speeds. This ProArt signature feature allows content creators to monitor system health at a glance without interrupting workflow. The subtle lighting complements the cooler’s minimalist design while providing practical functionality for those who need constant performance awareness.
Premium Build Quality
The copper water block ensures optimal heat transfer from your processor, while the aluminum radiator provides excellent heat dissipation across its 420mm surface area. With 45cm tubes, installation flexibility is maximized for various case configurations. The all-black design with no RGB lighting appeals to professionals who prefer understated elegance over flashy aesthetics.
Box contents
- ASUS ProArt LC 420 radiator unit
- Three Noctua IndustrialPPC 140mm fans
- Mounting hardware for supported sockets
- Fan cables
- Installation manual
Check before you buy
- Confirm your processor socket compatibility (LGA 1150/1151/1155/1156/1200/1700 or AM4/AM5)
- Verify your case supports 420mm radiator mounting
- Check available space for triple 140mm fan configuration
- Ensure your motherboard has sufficient fan headers for three additional fans
Frequently Asked Questions
Q: What processor sockets are supported?
A: LGA 1150, 1151, 1155, 1156, 1200, 1700, AM4, and AM5 sockets are supported.
Q: How many fans come with this cooler?
A: Three 140mm Noctua IndustrialPPC fans are included.
Q: What is the noise level during operation?
A: The cooler operates at 31.5 dB, making it suitable for quiet environments.
Q: Does this cooler have RGB lighting?
A: No, the ProArt LC 420 features a clean, professional black design without RGB illumination.
Q: What is the total radiator size?
A: The radiator measures 45.6cm in width, 14cm in depth, and 3cm in height.
The Consultant’s verdict & warranty
The ASUS ProArt LC 420 is an excellent choice for content creators who prioritize quiet operation, reliable cooling performance, and professional aesthetics. Its combination of Noctua fans, three-phase motor technology, and comprehensive socket support makes it versatile for both Intel and AMD systems. The illuminated system monitoring adds practical value for professionals who need to track system performance. Covered by the standard Manufacturer Warranty, this cooler represents a solid investment for those building high-performance creative workstations where both function and form matter equally.
| Performance | |
|---|---|
| Suitable location | Processor |
| Pulse-width modulation (PWM) support | Yes |
| Rotational speed (min) | 800 RPM |
| Rotational speed (max) | 2000 RPM |
| Type | All-in-one liquid cooler |
| Fan diameter | 14 cm |
| Supported processor sockets | LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1156 (Socket H), LGA 1200 (Socket H5), LGA 1700, Socket AM4, Socket AM5 |
| Maximum airflow | 107 cfm |
| Airflow | 182.5 m³/h |
| Number of fans | 3 fan(s) |
| Fan static pressure | 4.18 mmH2O |
| Design | |
| Number of fans | 3 fan(s) |
| Product colour | Black |
| Illumination LED | No |
| Radiator material | Aluminum |
| Water block material | Copper |
| Technical details | |
| Type | All-in-one liquid cooler |
| Fan diameter | 14 cm |
| Supported processor sockets | LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1156 (Socket H), LGA 1200 (Socket H5), LGA 1700, Socket AM4, Socket AM5 |
| Maximum airflow | 107 cfm |
| Airflow | 182.5 m³/h |
| Number of fans | 3 fan(s) |
| Noise level | 31.5 dB |
| Illumination LED | No |
| Colour | |
| Product colour | Black |
| Weight & dimensions | |
| Fan dimensions (W x D x H) | 140 x 140 x 25 mm |
| Package depth | 204 mm |
| Package width | 462 mm |
| Package height | 157 mm |
| Package weight | 2.12 kg |
| Weight | 1.43 kg |
| Radiator width | 45.6 cm |
| Radiator depth | 14 cm |
| Radiator height | 3 cm |
| Tube length | 45 cm |
| Waterblock width | 7.8 cm |
| Waterblock depth | 7.8 cm |
| Waterblock height | 4.9 cm |
| Packaging data | |
| Package depth | 204 mm |
| Package width | 462 mm |
| Package height | 157 mm |
| Package weight | 2.12 kg |
| Packaging content | |
| Screws included | Yes |
| Cables included | Fan |
| Other features | |
| Noise level | 31.5 dB |
| Identifiers | |
| Distributor SKUs | 503241, STD10229138, CL90RC00N0-M0UAY0 |

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