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Black rectangular ATX power supply unit with modular cable ports and 135mm fan grille

Silverstone Technology

Silverstone Technology SST-ST1300-TI 1300W ATX power supply

SKU CH-DTSW-ZNJE9

ATX power supply delivering 1300W continuous output with 80 PLUS Titanium efficiency, fully modular cables, a single +12V rail rated at 1296W.

  • Power supply included1300 W
  • Product typeATX Mid Tower
  • 80 PLUS Titanium efficiency reaches 94% at typical loads
  • Single +12V rail delivers 1296W combined output
  • 100% modular cables simplify installation and airflow
  • 135mm fan runs semi-fanless for 0 dBA at low load
  • Japanese capacitors rated for 100000 hours MTBF

1300W ATX power supply

The Silverstone Technology SST-ST1300-TI delivers 1300W continuous DC output with a peak rating of 1400W. It targets builders assembling high-end workstations or multi-GPU systems that demand sustained 24/7 operation at up to 50°C ambient temperature. The fully modular design keeps cable routing clean in ATX mid-tower cases.

Single +12V rail with 1296W combined output

A class-leading single +12V rail supplies up to 1296W, while the combined +3.3V and +5V rails are rated at 120W. Voltage regulation stays within ±3% with low ripple and noise across the load range. Efficiency reaches 90% to 94% from 10% to 100% loading, backed by 80 PLUS Titanium certification and all Japanese electrolytic capacitors.

135mm semi-fanless cooling and modular connectors

A 135mm fan runs silently between 0 and 36 dBA and features intelligent semi-fanless operation at low loads. The package includes dual EPS 8-pin cables and multiple PCI-E 8/6-pin connectors for modern graphics cards. A 4-pin sense wire on the motherboard connector must be attached to the modular interface for proper function.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $354.99
Pricier than about 82% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX Mid Tower
Power
Power supply included1300 W

Questions about this item

Will the 135mm semi-fanless unit fit in an older chassis that only clears 150mm depth?

The housing is 180mm deep so it exceeds a 150mm limit; measure your case clearance before ordering.

How do I confirm the single +12V rail is delivering the rated 1296W combined output under load?

Use a multimeter on the 24-pin and EPS connectors; the rail should stay within ±3% of 12V while the fan remains below 36 dBA.

Which cables come pre-installed and which must be purchased separately for dual EPS and four PCI-E 8/6-pin devices?

All cables are modular in the box — two EPS 8-pin and four PCI-E 8/6-pin leads are included; no extra cables are required.

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