Razer

Razer Kunai Hydraulic 120MM ARGB PC Fan Controller Bundle

Razer's Kunai 120mm hydraulic bearing fan bundle delivers quiet cooling and Chroma aRGB lighting with full PWM control.

$130.15*$134.97Save 3%
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Razer Kunai Hydraulic 120mm aRGB PC Fan Bundle is designed for builders who want capable cooling paired with customizable lighting in a single package. Each fan uses a hydraulic bearing motor, which creates a thin fluid film between the bearing surfaces to reduce friction and noise during operation. This bearing type is known for delivering quieter performance than sleeve bearings while maintaining solid longevity, making the Kunai fans well-suited for systems where acoustic comfort matters.

What sets this bundle apart from buying fans alone is the inclusion of both a PWM fan controller and a Chroma Addressable RGB controller. The PWM controller lets you fine-tune fan speeds based on thermal demands — running fans slowly and quietly during light workloads and ramping up during intensive tasks. The Chroma aRGB controller connects to Razer Synapse, giving you access to the full range of Razer lighting effects and the ability to synchronize the fans' illumination with your keyboard, mouse, headset, and other Chroma-enabled devices. For builders invested in the Razer ecosystem, this integration creates a cohesive, unified lighting setup across the entire system.

Key Features

Quiet, Powerful: Cool your PC with high airflow aRGB fans packed with LEDs and lighting effects powered by Razer Chroma RGB

Connect Up to 8 Fans: Daisy chain and connect up to 8 Razer Kunai fans to Pulse Width Modulation and aRGB controllers to create immersive lighting effects - supported by Razer Synapse software for ultimate customization

Powered by Razer Chroma RGB: Unlock ultimate aRGB customization with 16.8 million colors, light patterns, and effects which react to your gameplay - get the world’s largest lighting ecosystem and control it from one platform

Custom Fan Curve Profiles: Create custom fan curve profiles via Razer Synapse and have your case fans automatically adjust their speeds based on system temperature including the ability to run at zero RPM for total silence

Convenient Fan Monitoring: Keep track and adjust fan speeds all from a single intuitive interface with the Razer Synapse software

6 addressable RGB headers to connect and control multiple devices - with each port supporting up to 80 LEDs, the aRGB Controller enables more intricate lighting setups and acts as a hub for all your ARGB-compatible devices

Specifications

Brand
Razer
Model
Kunai
Fan Size
120mm
Bearing Type
Hydraulic
Lighting
aRGB (Addressable RGB)
Fan Control
PWM
Included
PC Fan, PWM Controller, Chroma aRGB Controller

Pros & Cons

👍 Pros

  • Hydraulic bearings offer quieter operation and longer lifespan than standard sleeve bearing fans
  • Included PWM controller allows precise fan speed adjustments based on system temperatures
  • Chroma aRGB controller enables full lighting customization and synchronization through Razer Synapse
  • Bundle includes both fans and controllers, eliminating the need to purchase components separately

👎 Cons

  • Razer Synapse software is required for full lighting customization, adding background processes to your system
  • 120mm fan size limits compatibility to cases and radiators with 120mm mounting points
  • Premium pricing compared to comparable 120mm fan kits from other manufacturers
  • aRGB controller uses proprietary Razer Chroma integration, which may not sync natively with non-Razer RGB ecosystems

Frequently Asked Questions

The bundle includes Kunai 120mm hydraulic bearing fans, a PWM fan controller for speed management, and a Chroma Addressable RGB controller for lighting customization.
Yes, when connected through the included Chroma aRGB controller, the fans integrate with Razer Synapse for lighting customization and synchronization with other Razer peripherals.
The fans use hydraulic bearings, which provide a good balance of quiet operation and longevity compared to standard sleeve bearings.
Yes, the bundle includes separate PWM and aRGB controllers, allowing you to manage fan speed and lighting independently.