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Silverstone Technology SST-SX700-G 700W SFX Fully Modular 80 Plus Gold PSU with Improved 92mm Fan and Japanese Capacitors.
SilverStone

Silverstone Technology SST-SX700-G 700W SFX Fully Modular 80 Plus Gold PSU

Bottom line: The Silverstone Technology SST-SX700-G 700W SFX Fully Modular 80 Plus ($144.43 on Amazon as of 2026-10-06): 700W in a standard SFX footprint for small-form-factor builds; main trade-off: SFX mount only, no ATX mounting-hole compatibility.

$144.43

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Buy on Amazon — $144.43 Compare to similar power supplies

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 700W in a standard SFX footprint for small-form-factor builds
  • ✓ 80 PLUS Gold certified efficiency
  • ✓ 92mm FDB fan rated down to 18 dBA minimum
  • ✓ All Japanese capacitors on the internals
  • ✓ Fully modular flat-array cables, 100% detachable

Cons

  • ✗ SFX mount only, no ATX mounting-hole compatibility
  • ✗ Flat cables are still long for compact ITX cases
  • ✗ No fanless or zero-RPM idle mode listed

Manufacturer description

After pioneering full featured, high Performance SFX power supplies in 2012, Silverstone has continued refining the segment it has created. The sx700-g is yet another evolutionary step toward perfecting this small form factor power supply category. It is more powerful without growing in size to achieve unprecedented power density levels of 882W, The highest of any SFX or ATX PSUs released thus far. This increase in power density was achieved through more advanced engineering and component selection so rather than added noise as is the norm for upping wattage output in power supplies, the…

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SpecPicks Verdict

SpecPicks scored Silverstone Technology SST-SX700-G 700W SFX Fully Modular 80 Plus… using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. SilverStone's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Support Standard SFX form factor, not compatible with ATX power supply mounting holes
  • Silent running 92mm FDB fan with 18 dBA minimum. All Japanese Capacitors
  • 100% modular cables. All cable with flexible flat arrays
  • High efficiency with 80 PLUS Gold certification
  • Class-leading single +12V rail. Strict 3% Voltage regulation and low ripple & noise

Full Specifications

BrandSilverStone
Wattage700 watts
Fan Size92 Millimeters
Model Namesilverstone
Form FactorSFX
Model NumberSST-SX700-G
Connector TypeATX
Cooling MethodAir
Number of Fans1
Output Wattage700
Item Dimensions4.92 x 3.94 x 2.5 inches
Mfr Part NumberSST-SX700-G
Compatible DevicesPersonal Computer
Power Supply DesignFull Modular
Warranty Description3 Years Parts and Labor
Maximum Input Voltage230 Volts (AC)
Minimum Input Voltage100 Volts
Item dimensions L x W x H4.92 x 3.94 x 2.5 inches
System Bus Connector Type4 Pin
Connector Type Used on CableATX
Full listing titleSilverstone Technology SST-SX700-G 700W SFX Fully Modular 80 Plus Gold PSU with Improved 92mm Fan and Japanese Capacitors.

Ready to buy?

Silverstone Technology SST-SX700-G 700W SFX Fully Modular 80 Plus Gold PSU with Improved 92mm Fan and Japanese Capacitors. is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $144.43

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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Silverstone Technology SST-SX700-G 700W SFX Fully Modular 80 Plus Gold PSU with Improved 92mm Fan and Japanese Capacitors.
$144.43
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