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Black 240 mm liquid cooler with dual fans, integrated VRM fan, copper cold plate and sleeved tubes

ARCTIC

ARCTIC Liquid Freezer III Pro 240 liquid cooler

SKU CH-5297-PA61F

A 240 mm liquid cooler with a 3000 rpm pump, 77 CFM fans, integrated VRM fan and native offset mounting for Intel LGA1700 and LGA1851 plus AMD AM5/AM4 sockets

  • Block dimensions10.9 L x 4.7 W x 2.6 H inches, 27.7 L x 12 W x 6.6 H centime
  • Cooling block materialCopper
  • Display typeARCTIC
  • Pump rotation speed3,000 rpm
  • Pump dimensions10.9 L x 4.7 W x 2.6 H inches
  • Pump bearingCeramic

Model LF III PRO 240

Color Black

LED Non-ARGB

  • Offset cold-plate mounting targets CPU hotspot for better heat transfer
  • Integrated VRM fan actively cools voltage converters under load
  • Pump and fans reach 3000 rpm for high airflow when needed
  • Single visible cable via integrated hose sheathing simplifies motherboard connection
  • Copper cold plate with micro-skived fins maximises thermal contact area

ARCTIC Liquid Freezer III Pro 240 AIO CPU Cooler

This all-in-one liquid cooler uses a 240 mm radiator and integrated VRM fan to dissipate heat from high-end desktop processors. A copper cold plate with micro-skived fins transfers thermal energy into the coolant loop. The pump runs at 3000 rpm on a ceramic bearing for long-term durability. Only a single PWM cable connects to the motherboard thanks to integrated cable routing.

Intel LGA1700 and LGA1851 contact frame

A dedicated contact frame redistributes mounting pressure across Intel LGA1700 and LGA1851 sockets to protect the CPU substrate and improve heat transfer. Native offset mounting shifts the cold plate toward the processor hotspot on both Intel and AMD platforms. This mechanical change is the specification that decides whether the cooler matches your socket and workload.

Thermals, noise and power draw in normal use

Two P12 Pro fans push up to 77 CFM at 3000 rpm while the pump and fans are rated at 0 sones for near-silent operation. The 4-pin PWM connectors allow the motherboard to scale speed with load, reducing power draw when the CPU is idle. Aluminium radiator tubes and copper construction maintain consistent coolant temperatures during sustained workloads.

How it compares

Measured against everything we stock in Liquid Cooling & AIO Coolers, at today’s prices. Recalculated every night.

Price $57.99
Cheaper than about 58% of the 1,190 comparable items (median $71.99).

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Specifications

Product
Brand nameAlphacool
Model nameLF III PRO 240
Part numberACFRE00178A
Product colorBlack
Performance
Pump rotation speed3,000 rpm
Fan speed3,000 rpm
Fan airflow77 cubic feet per minute
Display
Display typeARCTIC
Ports & slots
Fan plug type4 Pin
Size & build
Block dimensions10.9 L x 4.7 W x 2.6 H inches, 27.7 L x 12 W x 6.6 H centimeters
Cooling block materialCopper
Pump dimensions10.9 L x 4.7 W x 2.6 H inches
Radiator materialCopper
Fan dimensions27.7 L x 12 W x 6.6 H centimeters
Tubing materialAluminium (Radiator), Copper, Micro Skived Fins (Cold Plate)
In the box
In the boxARCTIC Liquid Freezer III Pro 240 (black)
Environment & compliance
Pump noise level0 sones
Fan noise level0 sones
More details
Pump bearingCeramic
LED lightingNon LED
Reservoir dim.27.7 L x 12 W x 6.6 H centimeters, 10.9 L x 4.7 W x 2.6 H inches

Other versions of this model

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Questions about this item

How much airflow does the 240 mm radiator deliver once it is installed in a case?

The two P12 Pro fans on the 240 mm radiator each move up to 77 cubic feet per minute, so the cooler pushes that volume of air through the fin stack under load.

What does the 4-pin PWM fan connector control on this cooler?

The single 4-pin PWM header drives both radiator fans and the integrated VRM fan together, letting the motherboard regulate every fan speed from one signal.

Will the cold-plate block clear tall memory modules on an LGA1700 board?

The block measures 10.9 by 4.7 by 2.6 inches and uses a native offset mount that shifts the cold plate toward the CPU hotspot, leaving the top memory slots free on LGA1700 and LGA1851 platforms.

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