NZXT PA-5P1BB-US C1500 Platinum Low-Noise PSU — main product image

NZXT PA-5P1BB-US C1500 Platinum Low-Noise PSU

NZXT

NZXT PA-5P1BB-US C1500 Platinum Low-Noise PSU

Name: NZXT PA-5P1BB-US C1500 Platinum Low-Noise PSU
Brand: NZXT
SKU: PA-5P1BB-US

★★★★★4.6 (1282 reviews)

80 Plus Platinum

A 1500W fully modular ATX 3.1 power supply with Cybenetics Titanium efficiency and dual PCIe 5.1 connectors for top-tier builds.

$337.70*$369.99Save 8%

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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

The NZXT C1500 Platinum is a flagship-tier power supply engineered for demanding high-performance PC builds. Rated at 1500 watts with full ATX 3.1 and PCIe 5.1 compliance, it arrives ready to power the latest and upcoming generations of graphics cards and processors without relying on adapter cables. The inclusion of two native 16-pin 12V-2x6 PCIe 5.1 connectors — each capable of delivering over 600 watts — means even the most power-hungry GPUs receive clean, stable power directly from the source. Digital power regulation enables precise voltage control, resulting in lower ripple noise and tighter tolerances compared to traditional analog designs.

Efficiency is a standout feature of the C1500. It surpasses the 80 PLUS Platinum standard and carries a Cybenetics Titanium rating, translating to approximately 94% efficiency during typical operation. Less wasted energy means less heat generated inside the chassis and lower electricity costs over time. The 140mm magnetic levitation fan uses air-suspended blades that minimize friction, extending the fan's lifespan while keeping noise levels remarkably low even under full load. Built with 100% Japanese capacitors and a fully modular cable design, the C1500 Platinum is designed for builders who want reliability, clean cable routing, and the confidence that their power supply will not be the bottleneck in their system for years to come.

Key Features

FUTURE-PROOF POWER — Designed with ATX 3.1 and PCIe 5.1 compliance to power current and future generations of high-performance GPUs and CPUs.

DUAL PCIE 5.1 CONNECTORS — Includes two 16-pin 12V-2x6 PCIe 5.1 cables, each capable of delivering over 600 watts to power-hungry GPUs.

THE DIGITAL DIFFERENCE — Digital power enables precise voltage regulation, resulting in higher efficiency and lower ripple noise.

EXCEPTIONAL EFFICIENCY — Exceeding 80 Plus Platinum standards and boasting a Cybenetics Titanium efficiency rating, the 94% efficiency lowers power usage and ensures quieter, cooler operation.

MAGNETIC LEVITATION FAN — 140mm magnetic levitation fan uses air-suspended blades for low noise, high airflow, and a long lifespan.

Specifications

Brand

NZXT

Model

PA-5P1BB-US

Wattage

1500W

Compliance

ATX 3.1, PCIe 5.1

Efficiency Rating

80 PLUS Platinum, Cybenetics Titanium (94%)

PCIe Connectors

Dual 16-pin 12V-2x6 PCIe 5.1

Fan

140mm Magnetic Levitation

Capacitors

100% Japanese

Modularity

Fully Modular

Color

Black

Pros & Cons

👍 Pros

1500W capacity provides ample headroom for multi-GPU or high-end single-GPU builds
Dual 12V-2x6 PCIe 5.1 connectors eliminate the need for adapter cables on modern GPUs
94% efficiency with Cybenetics Titanium rating reduces wasted power and heat output
140mm magnetic levitation fan delivers quiet operation even under heavy loads
Fully modular design allows clean cable management with only the cables you need

👎 Cons

1500W capacity is overkill and cost-prohibitive for mid-range or mainstream builds
Physical size of a 1500W unit may not fit in smaller or mid-tower cases
Premium pricing places it well above budget and mid-tier power supply options
High wattage units draw significant power at the wall, which may require a dedicated circuit

Frequently Asked Questions

How many PCIe 5.1 12V-2x6 connectors does the NZXT C1500 include?

The C1500 Platinum includes two 16-pin 12V-2x6 PCIe 5.1 cables, each rated to deliver over 600 watts, so it can handle even the most power-hungry graphics cards.

What efficiency rating does the NZXT C1500 Platinum achieve?

It exceeds 80 PLUS Platinum certification and has earned a Cybenetics Titanium efficiency rating, reaching up to 94% efficiency under typical loads.

What type of fan does the C1500 use, and how loud is it?

The C1500 uses a 140mm magnetic levitation fan with air-suspended blades. This design reduces friction and noise while maintaining high airflow, contributing to the unit's low-noise operation.

Is the NZXT C1500 fully modular?

Yes, the C1500 Platinum is fully modular, meaning you only connect the cables you need. This simplifies cable management and improves airflow inside your case.

What ATX standard does this power supply comply with?

It complies with ATX 3.1 and PCIe 5.1 standards, making it compatible with current and upcoming high-performance GPUs and CPUs without requiring adapters.