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White rectangular ATX power supply unit with modular cable ports and a 135 mm fan grille

NZXT

NZXT PA-8G2BW-US 850 W ATX 3.1 power supply

SKU CH-P3XP-JW7V3 MPN PA-8G2BW-US

Fully modular ATX 3.1 unit delivers 850 W with 80 Plus Gold efficiency, a 135 mm FDB fan that stops below 50 % load, and a 12V-2x6 cable for RTX 50 Series GPUs

  • TypeATX12V v3.1 / EPS12V v2.92
  • Maximum Power850 W
  • ModularFull Modular
  • Fans1 x 135 mm FDB
  • PFCActive @0.99
  • Energy-Efficient80 PLUS GOLD Certified

Options 850W (White)

  • 850 W continuous power supports demanding GPU and CPU loads
  • ATX 3.1 compliant design meets latest power-excursion and efficiency standards
  • 80 PLUS Gold certified with 0.99 active PFC reduces wasted energy
  • 135 mm FDB fan with zero-fan mode stays silent below 50 % load
  • Fully modular cables with nylon sleeving keep builds tidy and airflow clear

ATX 3.1 compliant 850 W power supply

This fully modular unit meets the ATX12V v3.1 and EPS12V v2.92 standards, delivering 850 W of continuous power. It carries 80 PLUS Gold certification and uses a 135 mm FDB fan with a zero-fan mode that stops the blades below 50 % load. Japanese capacitors and a full set of nylon-sleeved cables complete the package.

Builders needing ATX 3.1 power and quiet operation

The supply suits systems that require the 12V-2x6 connector for modern GPUs and benefit from silent running at typical desktop loads. Its 160 mm depth fits most mid-tower cases, but very compact chassis may not accommodate the length. Users who do not need the new 12V-2x6 connector or who prefer a smaller footprint should consider other models.

12V-2x6 cable rated for 600 W GPU power

The included 12V-2x6 cable can deliver up to 600 W to a compatible graphics card, which is the decisive specification for pairing this unit with high-end GPUs. If the target graphics card draws more than 600 W through that connector, a higher-rated power supply is required.

Highlights

  • 850 W continuous power supports demanding GPU and CPU loads
  • ATX 3.1 compliant design meets latest power-excursion and efficiency standards
  • 80 PLUS Gold certified with 0.99 active PFC reduces wasted energy
  • 135 mm FDB fan with zero-fan mode stays silent below 50 % load
  • Fully modular cables with nylon sleeving keep builds tidy and airflow clear

Specifications

BrandNZXT
ModelPA-8G2BW-US
Part NumberPA-8G2BW-US
TypeATX12V v3.1 / EPS12V v2.92
Maximum Power850 W
ModularFull Modular
Fans1 x 135 mm FDB
PFCActive @0.99
Energy-Efficient80 PLUS GOLD Certified
Input Voltage100 - 240 V
Input Frequency Range50/60 Hz
Input Current10A-5A
Output+3.3V@22A, +5V@22A, [email protected] , +5VSB@3A
MTBF>100,000 Hours
ApprovalsFCC, Canada, CE, CB(IEC 62368-1), UKCA, CCC, BSMI, BIS, RCM, UAE, TUV, cTUVus, KC, CP65
Connectors24-pin ATX Power Cable: 600mm with nylon sleeving, Output Connectors: 1
4+4-pin CPU Power Cable: 700mm with nylon sleeving, Output Connectors: 1
8-pin CPU Power Cable: 700mm with nylon sleeving, Output Connectors: 1
6+2-pin PCIe Power Cable: 650mm with nylon sleeving, Output Connectors: 3
16-pin (12+4) 12V-2x6 PCIe Cable: 650mm with nylon sleeving, Output Connectors: 1
SATA Cable: 500+150mm, Output Connectors: 12
Peripherals Cable: 500+150mm, Output Connectors: 4
ColorWhite
ProtectionOVP (Over Voltage), UVP (Under Voltage), SCP (Short Circuit), OTP (Over Temp), OPP (Over Power), OCP (Over Current)
Dimensions150 x 86 x 160 mm
Shipping weight3.79 kg
Package size318 × 216 × 121 mm

Other versions of this model

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Questions about this item

Will the included 12V-2x6 cable support a new RTX graphics card that draws up to 600 watts?

Yes, the 12V-2x6 cable is rated to deliver up to 600 watts to compatible RTX cards.

Does the 135 mm fan stay off during light workloads to keep the system quiet?

Zero Fan Mode stops the fan completely while the load remains under 50 percent.

Are all cables detachable so I only install what my build actually needs?

The unit is fully modular with a complete cable set included in the box.

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