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Compact desktop server chassis, matte black finish, 140mm depth

Silverstone Technology

Silverstone Technology ST55F-PT 80 PLUS Platinum Modular Server Chassis

SKU CH-P7PV-6Z3TY

A compact 140mm deep server chassis with 80 PLUS Platinum efficiency, 100% modular cables and a 120mm fan rated at 18 dBA

  • Chassis TypeDesktop
  • Compact 140mm depth fits tight server spaces
  • 80 PLUS Platinum efficiency reduces power waste
  • 100% modular cables simplify installation
  • Fan stays off below 20% load for silent operation
  • Single +12V rail delivers 24/7 continuous output at 40°C

Compact Desktop Chassis

The Silverstone Technology ST55F-PT is a desktop server chassis built for space-constrained environments. Its compact design features a depth of 140mm to simplify integration into tight racks or cabinets. It targets builders who need a small footprint without sacrificing power delivery quality.

Suited For Quiet Builds

This unit suits users who prioritise silent operation and high efficiency in a small form factor. The 120mm fan runs at 18 dBA and can stay off below 20% load for fanless idle periods. Buyers who need larger drive bays or extensive internal expansion should look at bigger enclosures.

Straightforward Modular Install

Installation is simplified by 100% modular cables that reduce clutter inside the shallow chassis. The single +12V rail delivers 247W continuous power at up to 40°C operating temperature. The main challenge is routing cables cleanly within the 140mm depth limit.

Highlights

  • Compact 140mm depth fits tight server spaces
  • 80 PLUS Platinum efficiency reduces power waste
  • 100% modular cables simplify installation
  • Fan stays off below 20% load for silent operation
  • Single +12V rail delivers 24/7 continuous output at 40°C

Specifications

Chassis TypeDesktop

Questions about this item

What motherboard form factor fits this 140 mm deep server chassis?

The chassis is a compact desktop type with a 140 mm depth, so it accepts standard ATX, micro-ATX and mini-ITX boards that fit within that length.

Will the 120 mm fan running at 18 dBA stay quiet when I keep my older PCIe expansion cards installed?

Yes, the fan remains off below 20 % load and runs at 18 dBA under light loads, so legacy add-in cards will not increase noise unless they push power draw past that threshold.

How can I verify the 80 PLUS Platinum efficiency is actually active after I cable the modular 100 % modular cables?

With the system idling below 20 % load the fan should stop completely, and under typical loads the single +12 V rail delivers 24/7 continuous output at 40 °C, confirming the platinum-rated efficiency is functioning.

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