ASUS today announced the ProArt LC 420, the first all-in-one (AIO) cooler in the ProArt line. Expertly integrating premium tech into an elegantly understated design, the ProArt LC 420 is made for creators who seek high performance, low noise and chic style. It’s powered by a performant three-phase motor pump and Noctua IndustrialPPC fans, and an illuminated meter on the pump cover provides live system stats in the signature minimalist ProArt manner for real-time information at a glance. With subtle and graceful aesthetics that add a touch of refinement to your setup, the ProArt LC 420 is cool, quiet and classy — the perfect trifecta for any and all content creators.

Premium performance
As one of the few 420 mm AIO coolers on the market, the ProArt LC 420 can deliver some of the most powerful cooling available. And with its three renowned Noctua NF-A14 industrialPPC-2000 PWM 140 mm radiator fans, airflow can be delivered quietly.

The synergy of high performance and low noise extends to many other elements of the ProArt LC 420. A premium three-phase motor pump ensures a smooth and steady transfer of heat to the radiator, while being acoustically tuned to blend into the background. And the radiator itself is thicker than usual, creating extra coolant storage so that the fans and motor do not have to work as hard.

A 420 mm AIO cooler is also designed to scale to a large chassis, so the ProArt LC 420 also features 450 mm of reinforced, sleeved tubing that offers durability and flexibility for a variety of setups.
ProArt style
Instead of featuring RGB lighting that could distract a creator from their work, the Asus ProArt LC 420 cooler includes only a minimalist illuminated meter on the pump cover, separated into segments that represent different levels of fan speeds, temperature readings, or system loads. With this subtly illuminated meter, a user can check their system’s cooling performance with a quick glance. These settings can be found within Armoury Crate.
The ProArt LC 420 cooler is designed to complement other components in the ProArt family, including motherboards, graphics cards, displays and more, empowering professional creators to design an entire system geared towards premium performance, tuned acoustics, and refined looks.
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| Model | ProArt LC 420 |
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| Water Block
| Dimensions | 78 x 78 x 49 mm |
| Block Material | Copper |
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| Radiator
| Dimensions | 456 x 140 x 30 mm |
| Material | Aluminum |
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| Tube
| Type | Sleeved Rubber tube |
| Length | 450 mm |
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| Fan
| Model | Noctua NF-A14 IndustrialPPC 2000 PWM Fan |
| Size | 3 x Fan Slots (140mm) |
| Dimensions | 140 x 140 x 25 mm |
| Speed | 800 – 2000 RPM +/- 10% |
| Static Pressure | 4.18 mmH2O |
| Air Flow | 107 CFM / 182.5 m3/h |
| Noise | 31.5 dB(A) |
| Control Mode | PWM/ DC |
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| Special Features
| AURA Sync Support| Yes |
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| Compatibility
| Intel | LGA 1700, 1200, 115x |
| AMD | AM5, AM4 |
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| Package Content
| – CPU Liquid Cooler (pre-applied thermal compound) |
| – 1-to-3 Fan Splitter Cable |
| – Accessory Pack of Screws and Brackets |
| – Quick Start Guide |
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| Warranty | 6 years |
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| Note | ProArt LC Series |
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