ARCTIC Liquid Freezer III Pro 420 · ACFRE00181A

MPN / P/N

ACFRE00181A

Manufacturer designation

Liquid Freezer III Pro 420

General / Listed thermal interface

MX-6 (0.8 g)

General / Operating ambient temperature

0—40 °C

General / Pump

800–2800 rpm ; (PWM controlled)

General (Pump) / Current | Voltage

0.35 A | 12 V DC

General / Cold Plate

Copper, Micro Skived Fins

General / Tube Length

500 mm

General / Tube Diameter

Outer: 12.4 mm ; Inner: 6.0 mm

General / Weight

2370 g

Compatibility / Intel

LGA1851, LGA1700

Compatibility / AMD

AM5, AM4

Compatibility / PI | NNPI

420 | 376

Radiator / Material

Aluminium

Radiator / Dimensions

458 (L) x 138 (W) x 38 (H) mm

VRM module / VRM Fan

400–2500 rpm ; (PWM-controlled)

VRM Module (VRM Fan) / Current | Voltage

0.05 A | 12 V DC

Radiator fan / General

3x P14 Pro

Radiator fan / Speed

400–2500 rpm

Radiator fan / Airflow

110 cfm | 186 m³/h

Radiator fan / Static pressure

5.2 mmH2O

Radiator fan / Bearing

Fluid Dynamic Bearing

Radiator fan / Current | Voltage

0.35 A | 12 V DC

Radiator fan / Connector

4-Pin Fan Plug

Documented selection limits

Check the exact motherboard/socket list, required mounting kit, case/RAM clearance, fan headers and radiator clearance. Radiator class is not its full external dimensions. ARCTIC PI/NNPI values are vendor performance indices, not CPU TDP guarantees.

Specification source: ARCTIC ↗
Checked against documentation: 16.10.2026