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SilverStone SX700-LPT 700W (Peak 750W) SFX-L 80 PLUS PLATINUM Certified Active PFC(PF>0.95 at full load) PFC Power Supply

In stock.
Ships from United States.
Most customers receive within 4-8 days.
  • SFX-L
  • 80 PLUS PLATINUM Certified
  • 90 - 264 V 47 - 63 Hz
  • +3.3V@22A, +5V@22A, +12V@58.4A, +5VSB@3.0A, -12V@0.3A

SFX Series SX700-LPT

  • SFX-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

For small form factor enthusiasts, the standard SFX power supply form factor has excellent combination of size, power, and affordability. At 100mm deep, however, the standard SFX PSU is also limited in fan size to 80mm or 92mm. While advances in engineering and components have made modern high-end SFX PSUs quieter than ever, there is still inherent limitation with these fans’ ability to dissipate heat at maximum loading conditions while maintaining satisfactory noise profile for users sensitive to higher-pitch sounds. With this in mind, SilverStone has released a “lengthened” variation of the SFX form factor called, SFX-L. With 30mm of added depth, a SFX-L power supply has enough room to fit a 120mm fan, thus its maximum load noise can be not only lower in intensity (via slower fan speed), but also lower in pitch (due to larger fan size).

The SX700-LPT marks another milestone in SilverStone’s pursuit of higher quality and more capable small form factor power supplies. At 700W, it includes all features available from top of the line SilverStone PSUs such as 80 PLUS Platinum efficiency, modular flexible flat cables, all Japanese capacitors and advanced semi-fanless capability.


Designed for 80 PLUS Platinum level of efficiency to reduce wasted heat and save on electricity.


100% moudlar cable design for easy removal in a case with cable routed and tied down.


Flat cables have much greater flexibility to allow for tighter folding and management of cables.


Powerful single +12V rail design, perfect for future high-end component upgrades or overclocking.


±3% regulation and low ripple & noise performance for high stability.


Ultra-quiet 120mm fan with intelligent RPM control guarantees cool performance and silent operation with minimum of 18dBA during fan operation. The fanless mode operation deactivates when PSU’s loading reaches 30%.


1 x 24 / 20-Pin motherboard connector


1 x 8 / 4-Pin EPS / ATX 12V connector


4 x 8 / 6-Pin PCIE connector


9 x SATA connector


3 x 4-Pin Peripheral connector


1 x 4-Pin Floppy connector

Model No. SST-SX700-LPT
Max. DC Output 700W (Peak 750W)
Power density 678W per liter
Load Range
  +3.3V +5V +12V +5VSB -12V
Max.(Amps) 22A 22A 58.4A 3.0A 0.3A
Peak (Amps) / / / 3A /
Min.(Amps) 0A 0A 0.1A 0A 0A
Range (%) ±3% ±3% ±3% ±5% ±10%
Line Reg.(%) ±1% ±1% ±1% ±1% ±1%
Ripple(mVp-p) 50mV 50mV 120mV 50mV 120mV
Color Black(Lead-Free Paint)
combined +3.3, +5V 120W
combined +12V 700W
Input Voltage 90V ~ 264V
Input Frequency Range 47Hz ~ 63Hz
PFC Active PFC(PF>0.9 at Full Load)
Efficiency 89% ~ 92% at 20% ~ 100% loading
MTBF 100,000 hours
Operating temperature 0°C ~ 40°C
Protection Over Current Protection
Over Power Protection
Over Voltage Protection
Short Circuit Protection
Under voltage protection
Over Temperature Protection
Connectors 1 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)
Cooling System Single 120mm silent fan
Noise Level 0 ~ 36 dBA
Dimension 125 mm (W) × 63.5 mm (H) × 130 mm (D)
Weight 1.68 kg
Form factor SFX-L
Certification 80 PLUS Platinum
Other Compatible with ATX12V v2.4

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