Quick Summary
The ARCTIC Liquid Freezer III Pro 420 is an AIO CPU cooler in black with three 140 mm water-cooling fans, a 38 mm radiator and a PWM pump. It is presented with support for AMD AM5 and AM4, and Intel LGA1851 and LGA1700, with a contact frame included for Intel LGA1851 and LGA1700.
The cooler also includes a VRM fan and integrated cable management, so the radiator fan PWM cables are integrated in the hose sheathing and only a single visible cable is connected to the motherboard.
Who It Is Best For
This cooler suits buyers who need a 420 mm class liquid CPU cooler and want to check motherboard socket compatibility before ordering. It is also relevant if you want the listed Intel contact frame support and the integrated cable routing shown in the product details.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | ARCTIC, which identifies the product line clearly. |
| Product type | Liquid Freezer III Pro 420 AIO CPU cooler for liquid CPU cooling. |
| Colour | Black. |
| Fan setup | 3 x 140 mm water cooling fans. |
| Radiator | 38 mm radiator, which is an important fit check for case space. |
| Pump | PWM pump for connected speed control. |
| Included cooling feature | Integrated VRM fan to lower the temperature of the voltage converters. |
| Socket support | AMD AM5 and AM4, plus Intel LGA1851 and LGA1700 with a contact frame. |
| Cable management | Integrated cable management with the fan PWM cables routed through the hose sheathing. |
Why Buyers Choose It
- Three 140 mm fans give a 420 mm cooling layout, so the radiator size is a key case compatibility check.
- The 38 mm radiator means buyers should confirm available clearance before fitting.
- The included Intel contact frame is listed for LGA1851 and LGA1700 support.
- The integrated VRM fan adds an extra cooling element for the voltage converters.
- Integrated cable management reduces the number of visible motherboard connections.
What To Know Before You Buy
Check your case has space for a 420 mm radiator and confirm the 38 mm radiator size against your available clearance. Make sure your CPU socket matches the listed AMD AM5, AM4, Intel LGA1851 or LGA1700 support before ordering. If you are buying for Intel, note that the contact frame is specifically listed for LGA1851 and LGA1700.
Common Buyer Questions
Which CPU sockets does it support?
It is listed for AMD AM5 and AM4, plus Intel LGA1851 and LGA1700.
How many fans are included?
It uses three 140 mm water-cooling fans.
Does it include cable management?
Yes. The radiator fan PWM cables are integrated into the hose sheathing so only a single visible cable is connected to the motherboard.
Is there anything extra for Intel fitting?
Yes. A contact frame is listed for Intel LGA1851 and LGA1700.
Final Buying View
If you need a black 420 mm AIO CPU cooler with the listed socket support, the key checks are radiator clearance and motherboard compatibility. Review the case space and socket details carefully before ordering.
