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Silverstone

Silverstone SX700-LPT SFX-L 700W power supply

SKU CH-VM3Y-DY6V6 MPN SX700-LPT

SFX-L 700W unit with 80 PLUS Platinum efficiency, a 120mm semi-fanless fan, fully modular flat cables and a single 58.4A +12V rail

  • TypeSFX-L
  • Maximum Power700W (Peak 750W)
  • FansSingle 120mm silent fan
  • PFCActive PFC(PF>0.95 at full load)
  • +12V RailsSingle
  • Efficiency89% ~ 92% at 20% ~ 100% loading
  • SFX-L form factor fits compact cases
  • 80 PLUS Platinum certification delivers 89% ~ 92% efficiency
  • Single +12V rail provides 58.4A for stable GPU power
  • 120mm semi-fanless fan runs silent at low load
  • 100,000-hour MTBF with Japanese capacitors ensures long life

SFX-L 700W power supply

The Silverstone SX700-LPT is an SFX-L form factor power supply delivering 700W continuous power with a peak rating of 750W. It uses a single +12V rail rated at 58.4A and holds 80 PLUS Platinum certification for 89% to 92% efficiency across 20% to 100% load. A 120mm fan with semi-fanless operation provides cooling.

Small form factor builds needing high output

This unit suits builders assembling compact systems that accept the longer SFX-L depth while demanding 700W continuous power and Platinum efficiency. The fully modular flat cable set eases routing in tight spaces. Builds restricted to standard SFX dimensions or lower wattage requirements should consider other models.

Single +12V rail at 58.4A

The class-leading single +12V rail delivers 58.4A, determining whether the PSU can sustain high-current components under full load. Active PFC with a power factor above .95 at full load ensures clean power draw from 90 to 264V input. Protection circuits include over-voltage, under-voltage and short-circuit safeguards.

Highlights

  • SFX-L form factor fits compact cases
  • 80 PLUS Platinum certification delivers 89% ~ 92% efficiency
  • Single +12V rail provides 58.4A for stable GPU power
  • 120mm semi-fanless fan runs silent at low load
  • 100,000-hour MTBF with Japanese capacitors ensures long life

Specifications

BrandSilverStone
ModelSX700-LPT
TypeSFX-L
Maximum Power700W (Peak 750W)
FansSingle 120mm silent fan
PFCActive PFC(PF>0.95 at full load)
+12V RailsSingle
Efficiency89% ~ 92% at 20% ~ 100% loading
Energy-Efficient80 PLUS PLATINUM Certified
Input Voltage90 - 264 V
Input Frequency Range47 - 63 Hz
Output+3.3V@22A, +5V@22A, [email protected] , [email protected] , [email protected]
MTBF100,000 hours
Connectors1 x 24 / 20-Pin motherboard connector(300mm)
1 x 8 / 4-Pin EPS / ATX 12V connector(400mm)
2 x 8 / 6-Pin PCIE connector(400mm / 150mm)
2 x 8 / 6-Pin PCIE connector(550mm / 150mm)
6 x SATA connector("300mm / 200mm / 100mm" x 2)
3 x SATA connector(600mm / 150mm / 150mm)
3 x 4-Pin Peripheral connector(300mm / 200mm / 200mm)
1 x 4-Pin Floppy adapter connector(100mm)
FeaturesSFX-L form factor for use small form factor computers
700W continuous power output rated for 24/7 operation
Class-leading single +12V rail with 58.4A
High efficiency with 80 PLUS Platinum certification
Silent running 120mm fan with advanced semi-fanless operation
100% modular short cables with flexible flat arrays
Strict ±3% voltage regulation and low ripple & noise
Support quad PCI-E 8/6pin connectors
High quality construction with all Japanese capacitors
Dimensions2.50" x 4.92" x 5.12"
Weight3.70 lbs.
Over Voltage ProtectionYes
Short Circuit ProtectionYes
Under Voltage ProtectionYes
Over Current ProtectionYes
Over Power ProtectionYes
Over Temperature ProtectionYes
Shipping weight2.27 kg
Package size305 × 191 × 109 mm

Questions about this item

Will the 120mm fan need replacement after long 24/7 use?

The fan is rated within a 100000 hour MTBF, so under continuous operation it should run for many years before any bearing wear appears.

What limit appears first when the 58.4A single +12V rail runs at full load for hours?

The 700W continuous rating is the ceiling; once the combined +12V draw reaches 700W the protection circuits will activate before the rail itself overheats.

How loud and hot does the 120mm fan get during all-day 700W loads?

The semi-fanless design keeps the fan off at low loads, and at full load the Platinum efficiency of 89 to 92 percent limits waste heat, so noise stays low even after hours of sustained output.

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