More surface, fewer revolutions
A 420 mm radiator moves the same heat with the fans spinning slower than a 240 or a 280 one. Fewer rpm means less noise.
Manufacturer photography and visual sheets that come with the product.
ARCTIC Liquid Freezer III Pro 420 A-RGB
420 mm all-in-one liquid cooler with three P14 Pro A-RGB fans, a VRM fan, an 800–2,800 rpm PWM pump and MX-6 paste included. Mounting for AMD AM5/AM4 and Intel LGA1851/LGA1700.
MPN ACFRE00185A
SKU F9-COOL-ARC-LF3PRO-420-ARGB
$433.000
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Will it work in my PC?CHECK COMPATIBILITY →
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Ask FASE NUEVE ↗6-year manufacturer warrantyShipping calculated by destination and packagingReturn conditions applyIt needs a case that accepts 420 mm radiators. Processor and case are sold separately.
COOLING
01 / COOLING420 mm of radiator.And one extra fan.
Three 140 mm fans on a 458 x 138 x 38 mm aluminium radiator. The pump runs from 800 to 2,800 rpm over PWM and, underneath, an extra fan cools the motherboard VRMs: that is what sets the Pro series apart.
420 mm3 x 140 mm radiator
800–2,800 rpmPWM controlled pump
VRMIts own fan for the board
6 yearsManufacturer warranty
The VRM fan
The pump carries a fan blowing over the motherboard voltage regulators, the area ordinary AIOs leave without air.
FANS
02 / FANSP14 Pro.With pressure to spare.
The three fans are ARCTIC P14 Pro A-RGB: 400 to 2,500 rpm, 110 cfm of airflow and 5.2 mmH₂O of static pressure, with a fluid dynamic bearing. Static pressure is what it takes to push through a radiator.
One single cable
Fans and pump come out on a single 4-pin PWM connector. If you prefer separate curves, the kit includes the splitter cable.
Cables tucked in
They come pre-installed with the wiring routed through the radiator frame: it looks clean with no extra work.
INSTALLATION
03 / INSTALLATIONInstall it once.And it sits straight.
The kit ships with AM5, AM4, LGA1851 and LGA1700 brackets, the contact frame for Intel and 0.8 g of MX-6 paste. The mount is offset towards where the processor actually heats up.
Offset mounting
The cold plate is not centred on the socket but over the hot area of the chip, both on AM5 and on the Intel platforms.
Contact frame included
For LGA1851 and LGA1700 it includes the frame that corrects processor bending and improves contact.
MX-6 paste included
No need to buy paste separately: it comes with 0.8 g of ARCTIC own MX-6.
LIGHTING
04 / LIGHTINGTwelve LEDs.And not one more cable.
The A-RGB lighting is addressable: 12 LEDs with a 3-pin 5 V connector and a daisy chain output to keep adding. It syncs with your motherboard system.
COMPATIBILITY
05 / YOUR BUILDTwo questions.And you know if it fits.
A 420 mm AIO does not fit in every case. Before buying, look at your processor socket and the space in your case.
Your processor
AMD AM5 and AM4 · Intel LGA1851 and LGA1700. These are the sockets ARCTIC declares for this model.
Your case
It must accept a 420 mm radiator and leave 65 mm of thickness (38 mm radiator plus 27 mm fans).
The manufacturer charts
ARCTIC publishes its measurements on a Ryzen 9 7950X and a Core Ultra 9 285K; they are below, with their source.
The automatic check with FASE NUEVE products appears below.
SPECIFICATIONS
06 / DATANo fine print.
Data from the official ARCTIC sheet for reference ACFRE00185A, included below as PDF.
| Reference | ACFRE00185A · EAN 4895265000355 · UPC 840033403023 |
|---|---|
| Type | 420 mm all-in-one (AIO) liquid cooler |
| Compatibility | AMD AM5 and AM4 · Intel LGA1851 and LGA1700 |
| Radiator | Aluminium · 458 x 138 x 38 mm |
| Total thickness | 65 mm with the 27 mm fans mounted |
| Fans | 3 x 140 mm ARCTIC P14 Pro A-RGB · 400–2,500 rpm · 110 cfm (186 m³/h) · 5.2 mmH₂O · FDB |
| Pump | 800–2,800 rpm PWM controlled · 0.35 A at 12 V |
| Cold plate | Copper with micro skived fins |
| VRM fan | Yes · 400–2,500 rpm PWM controlled |
| Lighting | 12 addressable A-RGB LEDs · 3-pin connector + daisy chain output |
| Connections | One 4-pin connector for everything or a 3-connector splitter cable |
| Tubing | 500 mm · 12.4 mm outer · 6.0 mm inner |
| Thermal paste | ARCTIC MX-6 (0.8 g) included |
| Weight | 2,358 g the kit · 2,982 g with the box |
| Ambient temperature | 0 °C to 40 °C |
| Warranty | 6 years from the manufacturer |
DOCUMENTATION
The manufacturer papers.
Download the official sheets that come with this product.
Manufacturer manual: support.arctic.de ↗ · Documentation: support.arctic.de/docs ↗
FREQUENTLY ASKED QUESTIONS
What people ask us the most.
If you still have a doubt, write to us before buying.
Will it fit in my case?
The radiator is 458 x 138 mm and with the fans mounted it takes 65 mm of thickness (38 mm radiator plus 27 mm fan). You need a case that accepts 420 mm radiators. You can check it below with your case published data.
Does it fit my processor?
The kit ships with the AMD AM5 and AM4 brackets and the Intel LGA1851 and LGA1700 ones, plus the contact frame for the Intel platforms. Any other socket is not declared by the manufacturer.
Do I need to buy thermal paste?
No. It comes with 0.8 g of ARCTIC MX-6, the same paste the brand sells separately.
How is the lighting connected?
With a 3-pin A-RGB connector (5 V) and its daisy-chain output, compatible with motherboard sync systems. The 12 LEDs are addressable.
How many cables will I see?
The three fans and the pump come out on a single 4-pin PWM connector. If you prefer to control them separately, the kit includes the splitter cable with three connectors.
What warranty does it have?
Six years of manufacturer warranty, the one ARCTIC publishes for this series.
KEEP EXPLORING
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