The ASUS ProArt LC 420 (part number 90RC00N0-M0UAY0) is a 420 mm all-in-one liquid CPU cooler with a 456 x 140 x 30 mm aluminum radiator, three Noctua NF-A14 industrialPPC-2000 PWM 140 mm fans (up to 2000 RPM, 107 CFM, 31.5 dB(A)), a performance 3-phase motor pump and an illuminated status meter on the pump cover.
It is built for creators and workstation builders who need strong, quiet cooling for high-wattage CPUs during long renders and compiles. The minimalist ProArt styling matches ProArt motherboards and cases, and 450 mm sleeved tubing makes installation in large cases easy.
Key Features
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420 mm radiator – 456 x 140 x 30 mm, thicker with more coolant capacity for stronger cooling
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3 x Noctua NF-A14 industrialPPC-2000 PWM fans – 140 mm, up to 2000 RPM and 107 CFM
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Quiet operation – rated at 31.5 dB(A) with 4.18 mmH2O static pressure
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Performance 3-phase motor pump – better cooling capability and quieter operation
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Illuminated status meter – shows live system load, temperatures and fan speeds on the pump cover
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450 mm braided sleeved tubing – durable and flexible for large chassis
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Minimalist ProArt design – matches ProArt motherboards, cases and components
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Wide socket support – Intel LGA 1851/1700/1200/115x and AMD AM5/AM4, pre-applied thermal compound
Full Specifications
| General |
| Brand |
ASUS |
| Model |
ProArt LC 420 |
| Part Number |
90RC00N0-M0UAY0 |
| Type |
All-in-one liquid CPU cooler |
| Water Block & Pump |
| Water Block Dimensions |
78 x 78 x 49 mm |
| Cold Plate |
Copper |
| Pump |
Performance 3-phase motor |
| Status Meter |
Illuminated meter on pump cover (system load, temperatures, fan speeds) |
| Radiator |
| Radiator Dimensions |
456 x 140 x 30 mm |
| Material |
Aluminum |
| Tubing |
Sleeved rubber, 450 mm |
| Fans |
| Fan Model |
Noctua NF-A14 industrialPPC-2000 PWM |
| Quantity / Size |
3 x 140 x 140 x 25 mm |
| Speed |
800 – 2000 RPM ±10% |
| Static Pressure |
4.18 mmH2O |
| Airflow |
107 CFM (182.5 m³/h) |
| Noise |
31.5 dB(A) |
| Control |
PWM / DC |
| Compatibility |
| Intel |
LGA 1851, 1700, 1200, 115x |
| AMD |
AM5, AM4 |
| Warranty |
| Warranty |
Official ASUS warranty |
Who Is This For?
- Content creators rendering 3D, video and photo projects
- Workstation and developer builds with high-core-count CPUs
- Users who prioritize quiet cooling under sustained load
- ProArt-themed builds with a 420 mm radiator mount
How It Compares
Versus the ASUS ProArt LC 360 (3 x 120 mm Alphacool fans), the ProArt LC 420 uses a larger 420 mm radiator with three 140 mm Noctua NF-A14 industrialPPC fans for higher airflow; check that your case supports a 420 mm radiator (456 mm long).
In the Box
- 1 x CPU liquid cooler (pre-applied thermal compound)
- 1 x 1-to-3 fan splitter cable
- 1 x Accessory pack of screws and brackets
- 1 x Quick start guide
Why Buy from PC PARK?
- 100% original product with official ASUS warranty
- Delivery to all regions of Saudi Arabia (Riyadh, Jeddah, Dammam and more)
- Secure online checkout
- Pre- and after-sales support from the PC PARK team
Frequently Asked Questions
Which fans does the ASUS ProArt LC 420 use?
Three Noctua NF-A14 industrialPPC-2000 PWM 140 mm fans rated up to 2000 RPM and 107 CFM.
Is the ProArt LC 420 compatible with LGA 1851 and AM5?
Yes. It supports Intel LGA 1851, 1700, 1200 and 115x, and AMD AM5 and AM4.
Will a 420 mm radiator fit my case?
Your case needs a 420 mm (3 x 140 mm) radiator mount; the radiator measures 456 x 140 x 30 mm.
Does the ProArt LC 420 have RGB lighting?
No RGB fans; it has an illuminated status meter on the pump cover showing system load, temperatures and fan speeds.
How long is the tubing?
450 mm of sleeved tubing.
Is this cooler original with warranty?
Yes. PC PARK sells 100% original ASUS coolers with the official ASUS warranty.
Do you deliver the ASUS ProArt LC 420 in Saudi Arabia?
PC PARK delivers to all regions of Saudi Arabia, with delivery time shown at checkout.
Order the ASUS ProArt LC 420 liquid CPU cooler from PC PARK with official warranty and fast delivery across Saudi Arabia.
