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Compact SFX power supply unit with matte black finish and modular cable sockets

Silverstone Technology

Silverstone Technology SX700-PT SFX 700W power supply

SKU CH-X8G9-G0QHJ

SFX 700W PSU with 80 PLUS Platinum efficiency, 18 dBA fan, 100% modular flat cables and a single 58 A +12V rail

  • TypeAT
  • Delivers 700W from a compact SFX chassis
  • 80 PLUS Platinum certification cuts wasted energy
  • Silent 92mm FDB fan runs at 18 dBA minimum
  • Fully modular flat cables keep builds tidy
  • Single +12V rail supplies 58.4A for stable power

SFX 700W Platinum power supply

The Silverstone SX700-PT is an SFX-form-factor unit rated at 700W with 80 PLUS Platinum certification. It uses a single +12V rail capable of 58.4A output. All capacitors are Japanese and the cables are 100% modular with flexible flat arrays.

Sustained-load behaviour

A 92mm FDB fan runs at a minimum of 18 dBA and ramps up only when thermal load demands it. Strict 3% voltage regulation and low ripple and noise are maintained across the operating range. The Platinum efficiency rating reduces waste heat during continuous high-wattage delivery.

SFX form-factor limits

The compact SFX dimensions restrict maximum cable routing space in smaller chassis. Four 6+2-pin PCIe and dual EPS 8-pin connectors are provided, so builders needing more PCIe power must verify connector count. Fully modular cabling helps but cannot overcome the physical envelope of the standard.

Highlights

  • Delivers 700W from a compact SFX chassis
  • 80 PLUS Platinum certification cuts wasted energy
  • Silent 92mm FDB fan runs at 18 dBA minimum
  • Fully modular flat cables keep builds tidy
  • Single +12V rail supplies 58.4A for stable power

Specifications

TypeAT

Questions about this item

How loud is the 92 mm fan when the SX700-PT runs continuously under load?

The 92 mm FDB fan is rated at a minimum of 18 dBA, so even during all-day operation it stays very quiet.

What connectors must my motherboard and graphics cards already provide for this 700 W SFX unit to work?

You need a 24-pin ATX socket, an 8-pin EPS (two are supplied), and up to four 6+2-pin PCIe sockets for your GPUs.

Will the single +12 V rail delivering 58 A cause issues with older components that expect multiple rails?

The single 58 A rail simplifies power distribution and meets strict 3 % voltage regulation, so legacy parts receive clean, stable power.

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