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Black SFX power supply with 92 mm fan and flat modular cables

Silverstone Technology

Silverstone Technology RNAB08PHGCDZH 750 W SFX fully modular power supply

SKU CH-39CA-4653Z MPN RNAB08PHGCDZH

A 750 W SFX fully modular power supply with 80 PLUS Platinum efficiency, a 92 mm fan, 125 mm length, Japanese capacitors and a single +12 V rail

  • ColorBlack
  • TypeSFX
  • Maximum Power750 W
  • Fans1 x 92 mm
  • PFCActive
  • Max PSU Length125 mm
  • 80 PLUS Platinum efficiency cuts energy waste
  • 92 mm dual ball-bearing fan runs at 0 dBA minimum
  • 100 % modular flat cables keep builds tidy
  • 750 W from a 125 mm SFX chassis
  • Japanese capacitors back long-term reliability

750 W SFX fully modular power supply

The Silverstone Technology sx750 platinum is a compact SFX unit rated at 750 W for small-form-factor builds that need high output. Its fully modular cabling keeps the interior tidy and improves airflow in tight chassis. Builders who need more wattage than the SFX standard typically allows will find the headroom useful. It is not suited for cases that only accept ATX-size supplies.

80 PLUS Platinum efficiency

The supply carries 80 PLUS Platinum certification, meaning it meets strict efficiency targets across typical load ranges. Lower waste heat reduces the cooling burden in compact cases. The single +12 V rail delivers the full 750 W without multi-rail balancing. Builders who prioritise lower electricity cost over absolute peak power will benefit most.

92 mm dual ball-bearing fan under load

A 92 mm dual ball-bearing fan spins only when needed and can reach 0 dBA at low load. Under sustained load the fan ramps to maintain safe temperatures within the 125 mm deep housing. All Japanese capacitors and flat flexible cables support stable output during long sessions. Systems that run continuous heavy workloads will see consistent voltage regulation.

Highlights

  • 80 PLUS Platinum efficiency cuts energy waste
  • 92 mm dual ball-bearing fan runs at 0 dBA minimum
  • 100 % modular flat cables keep builds tidy
  • 750 W from a 125 mm SFX chassis
  • Japanese capacitors back long-term reliability

Specifications

BrandSilverStone
Modelsx750 platinum
Part Numbersst-sx750-pt
ColorBlack
TypeSFX
Maximum Power750 W
Fans1 x 92 mm
PFCActive
Max PSU Length125 mm
ModularFull Modular
Energy-Efficient80 PLUS PLATINUM Certified
Shipping weight1.95 kg
Package size274 × 178 × 86 mm

Questions about this item

What does the 750 W rating mean for my build?

It is the maximum continuous power the unit can deliver across all rails, enough for a high-end CPU and GPU combination in a compact case.

What does the 80 PLUS Platinum badge actually limit?

It certifies the unit meets strict efficiency targets at 20 %, 50 % and 100 % load, which lowers heat output and keeps the 92 mm fan quieter.

Will the 125 mm length fit my SFX case?

The chassis is a standard SFX form factor at 125 mm long, so it matches any case designed for that footprint.

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