Razer

Razer RC21-01840200-R3UT Katana 850W aRGB Power Supply

4.0 (8 reviews)
850W

Power Your System with Ultimate Efficiency and Style The Razer Katana Power Supply delivers exceptional performance and stunning aesthetics. Featuring 80 Plus Platinum certification, customizable aRGB lighting, and a silent operation mode, it's the perfect choice for high-end gaming rigs. W...

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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

Power Your System with Ultimate Efficiency and Style

The Razer Katana Power Supply delivers exceptional performance and stunning aesthetics. Featuring 80 Plus Platinum certification, customizable aRGB lighting, and a silent operation mode, it's the perfect choice for high-end gaming rigs.

  • Wattage: 850W
  • Rating: 80 Plus Platinum
  • Fan: 140mm PWM Fan
  • Lighting: Razer Chroma aRGB
  • Features: Modular Design, Zero RPM Mode

Key Features

Platinum Rated for high-end efficiency: Designed to maximize the highest performance electrical components, the Katana PSU regulates power, provides enhanced power efficiencies, while reducing heat and energy use

Silent, Powerful aRGB Fan: With a powerful and silent 140mm PWM RGB fan, Katana PSUs stay cool

The Power You Need: Get the power output you need to build the best gaming PC with the latest GPUs, so you can run your favorite games

Modular By Design: Modular by design to support the power requirements your system with the cables you need. Easily customize your PC with cables to support your motherboard, CPU, GPU, aRGB, and other system components

Powered by Razer Chroma aRGB Addressable RGB customization and game integration: Achieve an immersive gaming experience 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

Zero RPM Mode: For a quiet experience at lower power use, the Katana psu allows for optimal thermal performance

Specifications

Wattage
850W
Efficiency Rating
Platinum Rated
Fan Size
140mm
Fan Type
PWM RGB Fan
RGB Integration
Razer Chroma aRGB
Form Factor
Modular
Cooling Feature
Zero RPM Mode

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Pros & Cons

👍 Pros

  • Achieves Platinum Rated efficiency, helping to maximize electrical performance and reduce energy consumption.
  • Features a powerful yet silent 140mm PWM RGB fan, which helps keep the PSU cool while maintaining quiet operation.
  • Offers modular by design cabling, allowing users to customize their PC with only the necessary cables.
  • Incorporates Razer Chroma aRGB, providing extensive addressable RGB customization and game integration for an immersive experience.
  • Supports a Zero RPM Mode, enabling silent operation at lower power usage for optimal thermal performance.

👎 Cons

  • The aRGB fan and Razer Chroma integration, while visually appealing, might be extraneous for users prioritizing pure functionality over aesthetics.
  • The 850W output, while substantial, might be an overkill or insufficient depending on the specific components in a high-end gaming PC build.
  • "Platinum Rated" describes efficiency, not necessarily the raw power delivery or component quality itself, though it often correlates.
  • Users without other Razer Chroma products may not fully appreciate the integrated lighting ecosystem.
  • The modular design, while offering customization, means users still need to manage and store unused cables.

Frequently Asked Questions

This power supply is Platinum Rated, indicating high-end efficiency designed to maximize electrical performance and reduce heat and energy use.
Yes, it is powered by Razer Chroma aRGB, offering addressable RGB customization and game integration with 16.8 million colors.
Yes, the Razer Katana 850W PSU is modular by design, allowing users to customize their PC with only the cables they need.
It features a silent, powerful 140mm PWM RGB fan, and also offers a Zero RPM Mode for quiet operation at lower power usage.
This power supply provides 850W of power output, suitable for building gaming PCs with the latest GPUs.