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Silverstone

Silverstone SX500-LG 500 W SFX-L power supply

SKU CH-6BJ6-QAWQB MPN SX500-LG

A 500 W SFX-L power supply with a 120 mm fan rated at 18 dBA, full modular cables and 80 PLUS Gold efficiency

  • TypeSFX-L
  • Maximum Power500 W
  • FansSilent running 120mm fan with 18dBA minimum (SX500-LG V2.0)
  • PFCActive
  • Main Connector20+4Pin
  • +12V RailsSingle
  • Quiet operation with a 120 mm fan at 18 dBA minimum
  • Compact SFX-L design adds 30 mm depth for better cooling
  • Full modular cabling keeps the build tidy and airflow clear
  • 80 PLUS Gold certified efficiency from 87 % to 90 % load
  • Single +12 V rail delivers 40 A for stable power

SFX-L 500 W power supply

The Silverstone SX500-LG is a fully modular SFX-L unit rated at 500 W. It targets small-form-factor builders who need more cooling headroom than a standard SFX design allows. The 120 mm fan runs at a minimum of 18 dBA for quiet operation. 80 PLUS Gold certification confirms 87 to 90 percent efficiency across typical loads.

Single +12 V rail at 40 A

All 500 W are delivered on a single +12 V rail rated at 40 A. This layout simplifies power distribution for modern graphics cards and CPUs. Two 6+2-pin PCIe connectors are provided for GPU power. The 20+4-pin ATX and 8/4-pin EPS cables support current motherboards.

Full modular cables ease routing

Every cable detaches so only required leads stay in the case. Lengths include a 300 mm ATX connector, a 400 mm EPS connector, and PCIe cables at 400 mm and 150 mm. Three SATA connectors span 300 mm, 200 mm and 100 mm. Verify case clearance for the 30 mm longer SFX-L body before ordering.

Highlights

  • Quiet operation with a 120 mm fan at 18 dBA minimum
  • Compact SFX-L design adds 30 mm depth for better cooling
  • Full modular cabling keeps the build tidy and airflow clear
  • 80 PLUS Gold certified efficiency from 87 % to 90 % load
  • Single +12 V rail delivers 40 A for stable power

Specifications

BrandSilverStone
ModelSX500-LG
TypeSFX-L
Maximum Power500 W
FansSilent running 120mm fan with 18dBA minimum (SX500-LG V2.0)
PFCActive
Main Connector20+4Pin
+12V RailsSingle
PCI-Express Connector2 x 6+2-Pin
SATA Power Connector3
ModularFull Modular
Efficiency87%~90%(20% to 100% loading)
Energy-Efficient80 PLUS GOLD Certified
Over Voltage ProtectionYes
Overload ProtectionYes
Input Voltage90 - 264 V
Input Frequency Range47 - 63 Hz
Output+3.3V@20A, +5V@20A, +12V@40A, [email protected] , [email protected]
MTBF>100,000 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)
3 x SATA connector(300mm / 200mm / 100mm)
2 x 4-Pin Peripheral connector (300mm / 200mm)
1 x 4-Pin Floppy connector(300mm / 200mm / 200mm)
FeaturesSilent running 120mm fan with intelligent semi-fanless operation
Support SFX-L form factor and ATX via included bracket
High efficiency with 80 PLUS Gold certification
100% modular cables
All cables made with flexible flat arrays
500W continuous power output at 40? operating temperature rated for 24/7 operation
Class-leading single +12V rail with 40A
Strict ±3% voltage regulation and low ripple & noise
Support dual PCI-E 8/6pin connectors
Active PFC
Dimensions2.50" x 4.92" x 5.12"
Weight3.09 lbs.
Shipping weight1.86 kg
Package size221 × 206 × 81 mm

Questions about this item

Will the SFX-L form factor fit my case that only accepts standard SFX units?

The SFX-L design adds 30mm of depth over standard SFX, so verify your case clearance before purchase.

What GPU power connectors are included for a mid-range graphics card?

Two 6+2-pin PCIe cables are supplied, supporting most cards up to the unit's 500 W limit.

How loud is the 120 mm fan under light loads?

The V2.0 fan spins down to a minimum of 18 dBA for quiet operation at low power draw.

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