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ARCTIC Liquid Freezer II 420 - Multi Compatible All-in-One CPU AIO Water Cooler, Efficient PWM Controlled Pump, Fan Speed: 200-1700 RPM (Controlled via PWM), LGA1700 compatible - Black

ARCTIC Liquid Freezer II 420 - Multi Compatible All-in-One CPU AIO Water Cooler, Efficient PWM Controlled Pump, Fan Speed: 200-1700 RPM (Controlled via PWM), LGA1700 compatible - Black

Q: Is the 420 supposed to come with 6 fans for push pull like the others because i assumed it did but i only got 3

I have the arctic 420 and the arctic 240. 420 has three fans and the 240 has two. Not seen one with six fans. Most people would front mount this so it would be next to the case fans anyway.

Q: can it be fit with amd thread reaper socket ?

I don’t think this fits the thread stipper processor

Q: For those with the 420mm version, or others really, what is the max noted speed that your fans run at..? mine show at 1510 rpm, check with hwinfo64

HWinfo shows 1644rpm for me. 420mm on ASUS TUF Gaming x570-Plus and Ryzen 7 5800X

Q: Will this fit in the Phanteks P600S case?

should fit in you case. on the front or on the top

Product ID: 237402839

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Details

Product dimensions
38L x 138W x
Brand
ARCTIC
Power connector type
4-Pin
Voltage
12 Volts
Cooling method
Water
Compatible devices
Computer

💧420mm radiator for max cooling

🧊15°C cooler VRM temps with dedicated fan

⚙️PWM-controlled pump & fans (200-1700 RPM)

Frequently Bought Together

Arctic Liquid Freezer II 420 - Multi Compatible CPU AIO Water Cooler, Compatible with Intel & AMD, Efficient PWM Controlled Pump, Fan Speed: 200-1700 RPM (Controlled via PWM) - Black

SAMSUNG 990 PRO SSD NVMe M.2 PCIe Gen4, M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and Heavy Duty Workstations, MZ-V9P2T0B/AM

AMD Ryzen™ 9 7950X3D 16-Core, 32-Thread Desktop Processor

Description

❄️ Stay cool, stay ahead — the Arctic chill your rig deserves!

LGA 1700 READY - Seamlessly compatible with Intel’s latest Alder Lake processors, future-proofing your build.
SMART PWM CONTROL - Dynamic pump and fan speeds (200-1700 RPM) optimize cooling and minimize noise—only use power when needed.
VRM COOLING BOOST - Integrated 40mm PWM fan slashes voltage regulator temps by 15°C, enhancing system stability under load.
SLEEK CABLE MANAGEMENT - Integrated sleeved tubing with a single visible cable keeps your build clean and professional-looking.
NEXT LEVEL COOLING EFFICIENCY - 420mm radiator + micro-skived fins deliver superior heat dissipation for peak CPU performance.

The ARCTIC Liquid Freezer II 420 is a premium all-in-one CPU cooler featuring a large 420mm aluminum radiator, efficient PWM-controlled pump and fans, and a dedicated VRM fan that reduces voltage regulator temperatures by 15°C. Designed for LGA1700 compatibility, it offers maintenance-free operation with integrated cable management and up to 80% less power consumption at idle, making it an ideal choice for high-performance, quiet, and clean PC builds.

Specifications

Manufacturer	ARCTIC
Part number	ACFRE00092A
Item Weight	1.98 kg
Product Dimensions	3.8 x 13.8 x 45.8 cm; 1.98 kg
Item model number	ACFRE00092A
Size	420
Colour	black
Style	Liquid Freezer II 420, black
Material	Aluminium (Radiator), Copper, Micro-Skived-Fins (Cold Plate)
Voltage	12 Volts
Item Package Quantity	1
Air Flow Capacity	72.8 Cubic Feet Per Minute
Noise Level	5.2 Decibels
Included components	Liquid Freezer II 420
Batteries included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Is the 420 supposed to come with 6 fans for push pull like the others because i assumed it did but i only got 3

can it be fit with amd thread reaper socket ?

For those with the 420mm version, or others really, what is the max noted speed that your fans run at..? mine show at 1510 rpm, check with hwinfo64

Will this fit in the Phanteks P600S case?

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