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

Silverstone Technology

Silverstone Technology ST55F-G Strider Gold 550W 80+ Gold Modular Server Chassis

SKU CH-T8WD-PVZZQ

A compact 140mm-deep modular power supply delivering 550W continuous output with 80Plus Gold efficiency and a silent 120mm fan

  • Chassis TypeDesktop
  • Compact 140mm depth fits tight server builds
  • 80Plus Gold efficiency from 87% to 90% at 20% to 100% load
  • 100% modular cables simplify cable management
  • Single +12V rail delivers 45A for stable power
  • Silent 120mm fan runs at 18dBA minimum

Compact server power supply

The Silverstone Strider Gold ST55F-G is a 550 watt fully modular ATX unit built for desktop server chassis. Its 140mm depth allows installation in space-constrained enclosures where standard length supplies will not fit. The single +12V rail delivers 45A for stable distribution to demanding components. It targets builders who need reliable 24/7 power in a short form factor.

Thermals noise and efficiency

An 80 Plus Gold rating guarantees 87 to 90 percent efficiency between 20 and 100 percent load, reducing waste heat during continuous operation. The 120mm fan spins down to a minimum of 18dBA for quiet running under light loads. The unit sustains its full 550W output at 40°C ambient temperature with a 600W peak capability. Voltage regulation stays within ±3 percent with low ripple and noise.

Modular cables and connectivity

One hundred percent modular cabling lets builders connect only the leads required, improving airflow inside compact server cases. Multiple PCIe cable sets are included to support multi-GPU compute or rendering configurations. The 24-hour continuous power rating suits always-on workloads such as rendering farms or storage arrays. Users needing higher wattage than 550W should consider larger Strider Gold models.

Highlights

  • Compact 140mm depth fits tight server builds
  • 80Plus Gold efficiency from 87% to 90% at 20% to 100% load
  • 100% modular cables simplify cable management
  • Single +12V rail delivers 45A for stable power
  • Silent 120mm fan runs at 18dBA minimum

Specifications

Chassis TypeDesktop

Questions about this item

How do I install the ST55F-G in a tight server chassis and which step is often missed?

Slide the 140mm deep unit into the bay, secure it with four screws, then attach only the modular cables your build actually needs — forgetting to remove unused cables is the common error.

What maintenance or replacement will the 120mm fan need later?

The 120mm fan runs at 18dBA minimum; plan to clean dust from its blades every 12 months and replace the fan if bearing noise appears after several years of 24/7 operation at 40°C.

What limit appears first when the ST55F-G runs at full load continuously?

The single +12V rail is rated for 45A; sustained loads above that will trigger over-current protection before the 550W continuous or 600W peak ratings are reached.

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