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Black rectangular ATX power supply unit with modular cable sockets and a 120mm fan grille

NZXT

NZXT NP-1PM-E850A 850 W ATX power supply

SKU CH-YTM6-NRFJY MPN NP-1PM-E850A

A fully modular 850 W ATX power supply with 80 Plus Gold efficiency, digital monitoring via CAM software, independent 12 V over-current protection and a 0 dB fan mode below 100 W load

  • TypeATX12V v2.4 / EPS12V v2.92
  • Maximum Power850 W
  • ModularFull Modular
  • Fans120mm Fluid Dynamic Bearing Fan
  • PFC[email protected]
  • Main Connector24Pin
  • 80 Plus Gold certified efficiency above 90 %
  • Fully modular design simplifies cable management
  • 0 dB mode keeps fan silent below 100 W load
  • CAM software monitors voltage, temperature and uptime
  • Independent over-current protection on 12 V rails safeguards components

850 W ATX power supply for gaming PCs

This fully modular 850 W ATX power supply delivers clean power to high-performance gaming systems. It uses a single +12 V rail rated at 70 A and carries 80 Plus Gold certification for efficiency above 90 percent. Japanese capacitors and a 10-year limited warranty back long-term reliability.

CAM software monitoring and 0 dB fan mode

Digital voltage and temperature monitoring feeds real-time wattage per rail, total uptime and internal temperature into NZXT CAM software. An onboard DSP enables independent over-current protection for the 12 V outputs to the motherboard, CPU and GPU. Below 100 W load the 120 mm fluid dynamic bearing fan stops completely for silent operation.

Handles single or multi GPU builds

Six 6+2-pin PCIe connectors and eight SATA power connectors support single or multi GPU configurations and plenty of storage. The 24-pin ATX and EPS12V v2.92 connectors cover modern motherboards. Builds needing more than 850 W or additional PCIe cables will require a higher-capacity unit.

Highlights

  • 80 Plus Gold certified efficiency above 90 %
  • Fully modular design simplifies cable management
  • 0 dB mode keeps fan silent below 100 W load
  • CAM software monitors voltage, temperature and uptime
  • Independent over-current protection on 12 V rails safeguards components

Specifications

BrandNZXT
ModelNP-1PM-E850A
SeriesE Series
Part NumberNP-1PM-E850A-US
TypeATX12V v2.4 / EPS12V v2.92
Maximum Power850 W
ModularFull Modular
Fans120mm Fluid Dynamic Bearing Fan
PFC[email protected]
Main Connector24Pin
+12V RailsSingle
PCI-Express Connector6 x 6+2-Pin
SATA Power Connector8
Efficiency> 90%
Energy-Efficient80 PLUS GOLD Certified
Over Voltage ProtectionYes
Input Voltage100 - 240 V
Input Frequency Range50 - 60Hz
Input Current12 - 6 A
Output+3.3V@20A, +5V@20A, +12V@70A, [email protected] , +5VSB@3A
MTBF100,000 hours
ApprovalsCB / CE / FCC / TUV / cTUV-SUDus / China CCC / Taiwan BSMI / Australia RCM / EAC
Connectors1 x 24-pin ATX power
2 x 4+4-pin CPU power
6 x PCIe (6+2 pin)
8 x SATA
6 x Peripherals
1 x Mini-USB
Max PSU Length150 mm
Dimensions3.39" x 5.91" x 5.91"
Weight5.51 lbs.
FeaturesPower indicators monitored and tracked through CAM software
Delivers precise & stable voltage while ensuring optimal efficiency under load
Silent operation with 0 RPM fan when operating under 100 watts
All the essentials delivered by a modern PSU: complete protection and fully modular design
Shipping weight3.20 kg
Package size351 × 224 × 109 mm

Questions about this item

What maintenance or replacement will the 120mm Fluid Dynamic Bearing Fan need over time?

The 120mm Fluid Dynamic Bearing Fan is designed for long life and typically requires only occasional dust cleaning; no scheduled bearing replacement is expected during normal use.

What limit appears first when the 850 W unit runs at full load continuously?

The +12V rail is rated at 70 A, so sustained loads that draw more than that on the 12 V output will hit the current limit before the overall 850 W rating is reached.

How much noise, heat or power draw should I expect once the PSU runs all day under typical loads?

Below 100 W the 0 dB mode keeps the fan completely silent; above that the fan spins up gradually, and 80 Plus Gold efficiency keeps waste heat and input power low during continuous operation.

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