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Black 360 mm radiator with three fans and integrated pump block, braided tubes, ARGB lighting

ARCTIC

ARCTIC Liquid Freezer III Pro 360 A-RGB liquid cooler

SKU CH-2S29-JCJ9T

A 360 mm all-in-one liquid cooler with 38 mm radiator, P12 Pro fans at 3000 rpm, integrated VRM fan, offset mounting for Intel LGA1700 and LGA1851 plus AMD AM5, and ARGB lighting

  • Block CompatibilityAMD Socket AM5
  • Block Dim.15.7 L x 4.7 W x 2.9 H inches
  • DisplayLiquid Freezer III Pro 360 A-RGB - Black ARCTIC
  • Pump Speed3000 rpm
  • Pump Dim.15.7 L x 4.7 W x 2.9 H inches
  • Pump Capacity77 cubic_feet_per_minute

Model LF III PRO 360

Color Black

LED ARGB

  • Optimised contact pressure for longer CPU life with LGA1851 and LGA1700 mounting frame
  • P12 Pro fans deliver higher airflow at every speed up to 3000 rpm
  • Native offset mounting shifts cold plate toward CPU hotspot for better heat transfer
  • Integrated VRM fan actively cools voltage regulators under load
  • Sleeve-integrated PWM cables leave only one visible connection to the motherboard

360 mm AIO with contact frame

The ARCTIC Liquid Freezer III Pro 360 A-RGB is a closed-loop liquid cooler built around a 360 mm radiator that measures 38 mm thick. It ships with a contact frame designed for Intel LGA1700 and LGA1851 sockets and native offset mounting for both Intel and AMD AM5 platforms. The integrated VRM fan and cable routing through the tube sleeve target builders who want a single visible motherboard connection.

Thermals noise and power

Three P12 Pro fans spin at up to 3000 rpm and move 77 CFM each while the pump also runs at 3000 rpm. The supplier lists fan and pump noise at 0 sones, indicating very low acoustic output at typical speeds. The 360 mm radiator surface and 38 mm thickness provide substantial heat capacity for sustained loads, and the PWM-controlled VRM fan adds targeted airflow to the voltage regulators without a separate header.

Integrated accessories

The contact frame redistributes mounting pressure on LGA1700 and LGA1851 CPUs to improve die contact and longevity. Native offset mounting shifts the cold plate toward the processor hotspot for more efficient heat transfer on both Intel and AMD AM5. The VRM fan draws power from the same PWM chain as the radiator fans, and all fan cables are routed inside the tube sleeve so only one cable reaches the motherboard.

Highlights

  • Optimised contact pressure for longer CPU life with LGA1851 and LGA1700 mounting frame
  • P12 Pro fans deliver higher airflow at every speed up to 3000 rpm
  • Native offset mounting shifts cold plate toward CPU hotspot for better heat transfer
  • Integrated VRM fan actively cools voltage regulators under load
  • Sleeve-integrated PWM cables leave only one visible connection to the motherboard

Specifications

BrandAlphacool
SeriesROG STRIX LC II 360
Part NumberACFRE00184A
Block CompatibilityAMD Socket AM5
Block Dim.15.7 L x 4.7 W x 2.9 H inches
DisplayLiquid Freezer III Pro 360 A-RGB - Black ARCTIC
Pump Speed3000 rpm
Pump Dim.15.7 L x 4.7 W x 2.9 H inches
Pump Capacity77 cubic_feet_per_minute
Pump Noise0 sones
Radiator Size360 mm
Fan Dim.15.7 L x 4.7 W x 2.9 H inches
Fan RPM3000 rpm
Fan Air Flow77 cubic_feet_per_minute
Fan Noise0 sones
Fan Connector4 Pin
ColorGreen
LED ColorARGB
Tube Dim.Liquid Freezer III Pro 360 A-RGB
Reservoir Dim.15.7 L x 4.7 W x 2.9 H inches
Reservoir Capacity1 Count
Coolant Capacity1 Count
FeaturesItem, LF III Pro, black, 0 sones
Package ContentsItem

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Questions about this item

How do I install the contact frame for Intel LGA1700 and LGA1851 sockets, and what step is often missed?

The contact frame replaces the stock Intel loading mechanism; the step often missed is removing the original ILM completely before placing the frame and tightening its screws in a cross pattern to ensure even pressure across the CPU heatspreader.

What maintenance will the integrated VRM fan and pump require over time?

The PWM-controlled VRM fan and 3000 rpm pump are sealed units; no user-serviceable parts exist, so maintenance is limited to dusting the 360 mm radiator fins and verifying fan curves in BIOS once per year.

At what point does the 38 mm thick radiator with 77 CFM fans hit its thermal limit during sustained loads?

The 38 mm radiator paired with three 3000 rpm fans moving 77 CFM each reaches its dissipation ceiling when coolant temperature stabilises roughly 12 °C above ambient, after which further CPU frequency scaling yields diminishing returns.

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