Quick Summary
ARCTIC Liquid Freezer III Pro 420 A-RGB is an AIO CPU cooler with three 140 mm water-cooling fans, a 38 mm radiator, a PWM pump and an integrated VRM fan. It is listed with a contact frame for Intel LGA1851 and LGA1700, plus AM5 and AM4 support in the title.
The cooler also includes native offset mounting, integrated cable management and A-RGB styling in black. The practical value of these features is that they support more focused CPU contact, neater cable routing and a cleaner overall build.
Who It Is Best For
This cooler suits buyers who are comparing an AIO CPU cooler for a build that uses one of the listed socket options. It is also worth checking the radiator size, case space and motherboard layout before ordering, especially because the product name includes a 420 size and a 38 mm radiator.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product | ARCTIC Liquid Freezer III Pro 420 A-RGB, an AIO CPU cooler for liquid cooling. |
| Fans | 3 x 140 mm water cooling fans, which indicates a larger triple-fan layout. |
| Radiator | 38 mm radiator, so case clearance is worth checking before purchase. |
| Pump control | PWM pump for motherboard control that matches a compatible PWM setup. |
| Socket support | Intel LGA1851, LGA1700, AM5 and AM4 are named in the title. |
| Extra cooling | Integrated VRM fan, which adds cooling for the voltage converter area. |
| Mounting | Native offset mounting and an Intel contact frame are included in the product naming and description. |
| Colour | Black. |
Why Buyers Choose It
- Three 140 mm fans and a 38 mm radiator give a clear size reference when matching the cooler to a case.
- The integrated VRM fan adds an extra cooling element for the motherboard area around the voltage converters.
- Integrated cable management reduces the number of visible cables connected to the motherboard.
- Native offset mounting is listed for more direct contact positioning over the CPU hotspot.
What To Know Before You Buy
Check that your case has room for a 420-size radiator and that the motherboard socket matches one of the listed options: Intel LGA1851, LGA1700, AM5 or AM4. The contact frame is named for Intel LGA1851 and LGA1700, so confirm your specific platform before ordering.
Review the radiator thickness, fan layout and cable route against your build plan so the cooler fits neatly with the rest of your components.
Common Buyer Questions
Which sockets are named for this cooler?
Intel LGA1851, LGA1700, AM5 and AM4 are all mentioned in the product title and description.
What makes the cable setup different?
The PWM cables for the radiator fans are integrated into the hose sheathing, leaving only a single visible cable to the motherboard.
Does it include extra cooling for the motherboard area?
Yes. An integrated PWM-controlled VRM fan is included to lower the temperature of the voltage converters.
What should I check before ordering?
Check case clearance for the 420 format and make sure the chosen motherboard socket matches the cooler’s listed support.
Final Buying View
ARCTIC Liquid Freezer III Pro 420 A-RGB is a socket-specific AIO cooler with a large radiator format, triple 140 mm fan setup and extra VRM cooling. Compare the listed socket support and case space with your build before ordering.





