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Rectangular black metal PSU with modular cable sockets and a 120mm fan grille

NO.

NO. 850 W 80 Plus Platinum modular power adapter

SKU CH-Y1PP-MKV77

An 850 watt 80 Plus Platinum power supply with fully modular cables and a semi-fanless 120 mm fan rated for 40 °C continuous operation

  • 850 watt output powers demanding builds
  • 80 Plus Platinum certification delivers 100% modular cable efficiency
  • 24/7 continuous power rated at 40? operating temperature
  • 120mm fan enables semi-fanless silent operation
  • ATX12V 2.4 compatibility ensures modern platform support

850 W Platinum power adapter

This 850 W modular power adapter delivers up to 850 watt maximum output for high-performance desktop builds. Its 80 Plus Platinum certification confirms high efficiency across typical load ranges. Fully modular cabling lets system builders connect only the leads they need. It targets enthusiasts who want reliable, efficient power without cable clutter.

Upgrade from lower-efficiency or fixed-cable units

Replacing a non-modular or lower-rated supply removes unnecessary cables and reduces waste heat at the same output. The jump is worth it when a build runs near its power envelope for extended periods and the builder values cleaner routing. ATX12V v2.4 compatibility ensures the connector layout matches modern motherboard requirements. Systems that only draw light loads will see less benefit from the efficiency gain.

Sustained load behaviour with semi-fanless cooling

Rated for 24/7 continuous power output at up to 40 °C operating temperature, the unit maintains its full 850 W capability without derating. A 120 mm fan runs ultra-silent and stays off at low loads thanks to intelligent semi-fanless operation. Under prolonged heavy demand the fan spins up gradually to keep components cool. Acoustic output remains low even when the supply is stressed for hours.

Highlights

  • 850 watt output powers demanding builds
  • 80 Plus Platinum certification delivers 100% modular cable efficiency
  • 24/7 continuous power rated at 40? operating temperature
  • 120mm fan enables semi-fanless silent operation
  • ATX12V 2.4 compatibility ensures modern platform support

Specifications

No published specifications for this item yet.

Questions about this item

Will the 120 mm fan and standard ATX dimensions fit my mid-tower case?

The unit uses a 120 mm fan in a standard ATX form factor, so it fits any case that accepts regular ATX power supplies.

Which modular cables must stay plugged in for a first boot, and which can stay in the box?

Connect the 24-pin ATX, the 8-pin CPU and any PCIe cables your graphics card needs; all other modular leads are optional and can remain unplugged.

How often should I clean the 120 mm fan to keep the semi-fanless mode working at 40 °C?

Blow dust from the fan intake every six to twelve months; a clean fan lets the semi-fanless circuit stay passive longer under load.

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