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F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U
F420U

F420U

420mm Ultra RGB Fan

Color
White Black
Where to Buy

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Overview

The NZXT Ultra RGB fan series delivers our most advanced lighting and cooling in a refined, modern package. Multi-zone addressable RGB across the hub, tracks, and inner bars creates dynamic, customizable effects, while precision-engineered blades and fluid dynamic bearings deliver whisper-quiet airflow under 37 dB. Available as standard 120mm and 140mm fans, or single-frame 360mm and 420mm designs that install with just four screws and one 8-pin connection.

  • Multi-zone addressable RGB — 32 LEDs (F120U/F140U), 96 LEDs (F360U/F420U)
  • Whisper-quiet operation under 37 dB at full speed
  • Precision-engineered blades and tight frame for high static pressure
  • Single-frame F360U and F420U install with four screws and one 8-pin connection
  • Anti-vibration corners reduce noise and resonance
  • 60,000-hour fluid dynamic bearing
  • Full customization via NZXT CAM with NZXT Control Hub or motherboard
  • Optional 5V ARGB header for basic motherboard control

MORE LIGHT. MORE CONTROL.

Ultra RGB fans that do more than glow—they bring your build to life. Multi-zone lighting dances across your setup with depth and motion, while whisper-quiet PWM cooling keeps your system calm.

CONTROL WITH CAM

Fan curves, thermal monitoring, and RGB personalization—everything in a single interface.
 
Requires NZXT Control Hub or NZXT motherboard (sold separately).

OPTIONAL DIRECT MOTHERBOARD CONTROL

Connect to a 5V ARGB header for basic lighting and fan control. Check LED compatibility.

PRECISE AIRFLOW

Aerodynamic blades and a precision-engineered frame move airflow through radiators and mesh.

WHISPER-QUIET COOLING

Stays under 37 dB at full speed with fluid dynamic bearings and anti-vibration corners.

BUILT TO LAST

Premium fluid dynamic bearings rated for 60,000+ hours deliver smooth, dependable cooling.

ALL-IN-ONE DESIGN

A single-frame design replaces multiple fans for a seamless look and simpler installation. Mounts with just four screws and one connection point. Includes an adapter cable for direct motherboard connection.
Tech Specs
Length
420 mm
Width
140 mm
Height
25 mm
Speed
500–2,400 ± 240 RPM
Airflow
92.2 CFM per fan
Static Pressure
5.1 mmH₂O per fan
Noise Level
36.9 dBA per fan
Speed (27 dBA)
1,700 RPM
Airflow (27 dBA)
61.73 CFM per fan
Static Pressure (27 dBA)
2.86 mmH₂O per fan
Rated Voltage
DC 12V (Fan) / 5V (RGB)
Rated Current
1.03A (Fan) / 1.4A (RGB)
Input Power
19.36W
Bearing
Fluid Dynamic Bearing (FDB)
Lifespan
60,000 hours
Power Connector
NZXT 8-pin
Number of Blades
7 per fan
LED Quantity
96 LEDs
Cable Length
1 × 600 mm
Materials
PBT, PC, Rubber, PCB
Warranty
5 years
Model Number (Black)
RF-E42US-BA
UPC (Black)
810074848329
EAN (Black)
5056547208183
Model Number (White)
RF-E42US-WA
UPC (White)
810074848336
EAN (White)
5056547208190
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