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Black SFX-L power supply unit with 120mm fan and modular cables

Silverstone Technology

Silverstone Technology RNAB08QCQFNFC 1000W SFX-L power supply

SKU CH-JQJF-N549Y MPN RNAB08QCQFNFC

SFX-L power supply delivers 1000 W continuous output with 80 PLUS Platinum efficiency and fully modular cables

  • Max wattage1000 W
  • Modular cablingFull Modular
  • Fan configuration1 × 120 mm
  • Power factor correctionActive
  • PSU length limit130 mm
  • Efficiency certification80 PLUS PLATINUM Certified
  • SFX-L form factor fits small form factor computers
  • 1000W continuous power rated for 24/7 operation
  • Single +12V rail delivers 83.3A for stable loads
  • 80 PLUS Platinum efficiency reduces energy waste
  • 120mm dual ball bearing fan runs silently with semi-fanless operation

SFX-L 1000W platinum power supply

This fully modular SFX-L unit delivers 1000 W of continuous power for small form factor computers that need high output in a compact 130 mm chassis. It suits builders assembling dense workstations or gaming systems where space is limited but demand is high. The 80 PLUS Platinum certification confirms strong efficiency across typical loads.

Single +12V rail with 83.3A capacity

The class-leading single +12V rail provides 83.3 A, giving ample headroom for modern multi-core CPUs and high-end graphics cards running simultaneously. At full 1000 W load the unit operates within strict 3 % voltage regulation and low ripple. Continuous 24/7 rating at 50 °C ambient ensures stability during sustained heavy workloads.

SFX-L form factor and modular cabling

The 130 mm SFX-L length fits many compact cases but exceeds standard SFX dimensions, so builders must verify chassis clearance before purchase. Fully modular flat cables reduce clutter yet remain short, limiting routing options in larger enclosures. The 120 mm dual ball bearing fan runs semi-fanless at low load but spins up under sustained demand.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $216.99
Pricier than about 66% of the 10,869 comparable items (median $142.99).
Max wattage 1000 W
Higher than about 70% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameSilverStone
Model namesx1000 platinum
Product colorBlack
Product typeSFX-L
Power
Max wattage1000 W
Modular cablingFull Modular
Power factor correctionActive
Efficiency certification80 PLUS PLATINUM Certified
Size & build
Shipping weight2.63 kg
Package size295 × 196 × 109 mm
Compatibility
PSU length limit130 mm
More details
Fan configuration1 × 120 mm

Questions about this item

Will the 130 mm length SFX-L unit fit in my existing small form factor case?

The SFX-L form factor measures 130 mm in length and is designed for small form factor computers, so it fits cases built to the SFX-L standard.

How can I verify the 120 mm fan is running correctly after installation?

The 120 mm dual ball bearing fan features semi-fanless operation, meaning it spins only when internal temperature requires active cooling.

Which cables come in the box and what must I source separately?

The unit is fully modular with 100% modular short cables using flexible flat arrays; only the cables required for your build need be connected.

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