NZXT

NZXT PA-2G1BB-US C1200 1200W ATX 3.0 PSU

4.6 (1279 reviews)
1200W

Power Your Gaming Rig with Confidence The NZXT C1200 ATX 3.0 Gold Power Supply is engineered for high-performance gaming PCs. With its fully modular design, 80 Plus Gold efficiency, and compatibility with PCIe 5.0 GPUs, this PSU ensures stable and efficient power delivery. Benefit from silent ope...

$159.58*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

Power Your Gaming Rig with Confidence

The NZXT C1200 ATX 3.0 Gold Power Supply is engineered for high-performance gaming PCs. With its fully modular design, 80 Plus Gold efficiency, and compatibility with PCIe 5.0 GPUs, this PSU ensures stable and efficient power delivery. Benefit from silent operation and premium components for a reliable gaming experience.

Key Features:

  • Designed for next-gen PCIe 5.0 GPUs with up to 600W power delivery
  • Built to withstand power spikes with up to 2x total power and 3x GPU power support
  • 80 Plus Gold certified for over 90% efficiency at 50% load
  • Silent operation with a 135mm PWM fan and Zero Fan Mode
  • High-quality Japanese 105°C-rated capacitors for enhanced reliability

Specifications:

  • Brand: NZXT
  • Series: C1200
  • Model: PA-2G1BB-US
  • Color: Black
  • Form Factor: ATX12V
  • Wattage: 1200 watts
  • Cooling Method: Air
  • Power Supply Design: Full Modular
  • PCI-Express Connector Configuration: 16 Pin

Key Features

NEXT-GEN POWER: Pumps up to 600 watts of power to PCIe 5.0 GPUs—like the NVIDIA GeForce RTX 4090—over a single 16-pin connector.

FUTURE-PROOF DESIGN: Built to withstand massive power spikes from next-gen GPUs by supplying up to 2x total power and 3x GPU power when needed.

ELITE EFFICIENCY: With over 90% efficiency at 50% load, the C1200 reduces energy usage to lower monthly costs and extend your PC's lifespan. No wasted energy—it only draws the power your system needs.

SILENT OPERATION: The 135mm PWM fan with a fluid dynamic bearing runs quietly, even at high loads. Zero Fan Mode shuts it off for total silence when under 40% load.

HIGH-QUALITY COMPONENTS: Constructed with all Japanese 105°C-rated capacitors for the highest standard in performance, reliability, and longevity.

Specifications

Wattage
1200W
ATX Standard
3.0
GPU Power Delivery
Up to 600 watts to PCIe 5.0 GPUs
GPU Connector
Single 16-pin
Efficiency
Over 90% at 50% load
Fan Size
135mm
Fan Type
PWM with fluid dynamic bearing
Capacitor Rating
Japanese 105°C-rated
Zero Fan Mode Threshold
Under 40% load

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Pros & Cons

👍 Pros

  • Provides next-generation power, pumping up to 600 watts to PCIe 5.0 GPUs via a single 16-pin connector.
  • Engineered with a future-proof design to handle substantial power spikes from modern GPUs, offering up to 3x GPU power when necessary.
  • Achieves over 90% efficiency at 50% load, which helps to reduce electricity consumption and operating costs.
  • Features a 135mm PWM fan with a fluid dynamic bearing for quiet operation, even under high system demands.
  • Includes Zero Fan Mode, which completely shuts off the fan for silent performance when under 40% load.
  • Constructed with high-quality Japanese 105°C-rated capacitors for superior performance, reliability, and extended lifespan.

👎 Cons

  • Specific power delivery benefits are primarily for PCIe 5.0 GPUs, potentially limiting full utilization with older hardware.
  • The 1200W capacity might be excessive for systems with less demanding components, leading to an investment in unused overhead.
  • Silent operation via Zero Fan Mode is only active under 40% load, meaning audible fan noise will occur during more intensive tasks.
  • The focus on next-gen power and components may indicate a higher price point compared to standard power supplies.

Frequently Asked Questions

The NZXT C1200 is designed to pump up to 600 watts of power to PCIe 5.0 GPUs, such as the NVIDIA GeForce RTX 4090, using a single 16-pin connector.
It features a future-proof design built to withstand significant power spikes, supplying up to 2x total power and 3x GPU power when these demands occur.
Yes, the C1200 is rated for elite efficiency, achieving over 90% efficiency at 50% load, which helps reduce energy usage and potentially lowers monthly electricity costs.
The power supply uses a 135mm PWM fan with a fluid dynamic bearing that runs quietly, even under high loads. It also includes Zero Fan Mode for total silence when under 40% load.
It is constructed with high-quality Japanese 105°C-rated capacitors, aiming for a high standard in performance, reliability, and longevity.