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Black rectangular power supply unit with modular cable sockets and a 135mm fan grille

Silverstone Technology

Silverstone Strider Plus ST85F-P 850W 80 Plus Silver PSU

SKU CH-A1N5-CH5Y2

A fully modular 850W 80 Plus Silver power supply with Japanese capacitors, a quiet 135mm fan and dual EPS connectors

  • Chassis TypeDesktop
  • 100% modular cables simplify cable management and improve airflow
  • 80 Plus Silver certification delivers up to 85% typical efficiency at 50% load
  • Japanese main capacitors enhance long-term reliability and voltage stability
  • Silent 135mm fan operates at 19dBA minimum for quiet operation
  • Compact 160mm depth fits a wide range of server and desktop chassis

Power supply for compact servers

The Silverstone Strider Plus ST85F-P delivers 850W of 80 Plus Silver certified power in a 160mm deep chassis. Fully modular cables keep routing clean and support dual EPS 8pin connectors for multi-socket boards. A 135mm fan runs as low as 19dBA for quiet operation in dense racks.

Practical limits of the ATX12V/EPS12V standard

The single +12V rail is regulated to ±3% across the 850W range, which covers most dual-socket server builds. Depth of 160mm fits standard rackmount cases, but larger redundant units will not share the same bay. Cable lengths suit typical server layouts; very deep enclosures may need extensions.

Installation notes and common issues

Modular design lets you connect only the cables required, reducing clutter in tight chassis. The 135mm fan orientation must match case airflow direction to avoid recirculation. Ensure both EPS 8pin connectors are seated firmly; loose pins are the most frequent cause of no-post on dual-CPU boards.

Highlights

  • 100% modular cables simplify cable management and improve airflow
  • 80 Plus Silver certification delivers up to 85% typical efficiency at 50% load
  • Japanese main capacitors enhance long-term reliability and voltage stability
  • Silent 135mm fan operates at 19dBA minimum for quiet operation
  • Compact 160mm depth fits a wide range of server and desktop chassis

Specifications

Chassis TypeDesktop

Questions about this item

Which Strider Plus capacity fits my build — 75 W, 850 W or 1000 W?

The Strider Plus line offers 75 W, 850 W and 1000 W models; choose the wattage that covers your total system draw with headroom.

What does the 850 W rating deliver in a working PC?

A single +12 V rail rated at 850 W with ±3 % regulation powers CPU and GPU loads without cross-rail balancing.

How does the 80 Plus Silver badge affect real efficiency?

80 Plus Silver guarantees at least 85 % efficiency at typical loads, reducing waste heat and fan speed.

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