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Rectangular silver power supply unit with modular cable ports and a large fan grille

Silverstone Technology

Silverstone Technology ST1500 1500W 80 PLUS Silver Modular Server Chassis

SKU CH-6JZ6-RNR8N

Delivers 1500 W continuous power with 80 PLUS Silver efficiency, fully modular cabling and a quiet 135 mm fan

  • Chassis TypeDesktop
  • 1500 W continuous power at 40 °C with 1600 W peak for demanding server loads
  • 80 PLUS Silver certified efficiency of 85–88 % from 20–100 % load
  • 100 % modular cabling with included cable bag for clean installation
  • Eight +12 V rails delivering 110 A continuous and 120 A peak for stable multi-GPU power
  • 135 mm fan runs as low as 19 dBA for quiet operation

1500W modular server power supply

The Silverstone Technology ST1500 delivers 1500W continuous power at 40°C with a 1600W peak rating for high-density server builds. Eight independent +12V rails each provide 110A continuous current, peaking at 120A. It suits administrators who need a single, high-wattage unit for multi-GPU compute nodes or storage arrays. Builders requiring redundant hot-swap supplies should look elsewhere.

Sustained-load behaviour and efficiency

Efficiency stays between 85% and 88% from 20% to 100% load under 80 PLUS Silver certification. Japanese main capacitors and strict ±3% voltage regulation keep output stable during prolonged heavy workloads. The 135mm fan spins quietly at a minimum of 19dBA while moving enough air for continuous operation. Users expecting platinum-grade efficiency at low loads will not find it here.

Installation practicalities

A 100% modular cable set with an included cable bag lets technicians route only the connectors needed for a cleaner chassis interior. The unit supplies four 8-pin PCIe, eight 6-pin PCIe and twelve SATA connectors for dense drive and accelerator populations. Active PFC and support for ATX12V 2.3 and EPS12V simplify compatibility with modern server boards. Cases with non-standard mounting hole patterns may require adapter brackets.

Highlights

  • 1500 W continuous power at 40 °C with 1600 W peak for demanding server loads
  • 80 PLUS Silver certified efficiency of 85–88 % from 20–100 % load
  • 100 % modular cabling with included cable bag for clean installation
  • Eight +12 V rails delivering 110 A continuous and 120 A peak for stable multi-GPU power
  • 135 mm fan runs as low as 19 dBA for quiet operation

Specifications

Chassis TypeDesktop

Questions about this item

How loud is the 135mm fan at its minimum 19dBA when the unit runs all day?

The 135mm fan operates at a minimum of 19dBA, so it stays very quiet even under continuous load.

Which connectors must my components already have to use the four 8-pin and eight 6-pin PCI-E plus twelve SATA cables?

Your graphics cards need 8-pin or 6-pin PCI-E power inputs, and your drives need SATA power ports.

Will the ATX12V 2.3 and EPS12V support work with an older motherboard that only has a 20-pin main connector?

The supply follows ATX12V 2.3 and EPS12V standards; a 20-pin board would need an adapter not included here.

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