SEASONIC S12III-500GB Atx Power Supply 500W

( Brand: Seasonic ), ( Manufacturer Part Number: S12III-500GB ), ( Voltage Compatibility: 12 V ), ( Connectors: 20 4 Pin, 4 4 Cpu, 6 2 Pin Pci Express ), ( Form Factor: Atx ), ( Type: Atx12v ), ( Maximum Power: 500 W ), ( Color: Black )

Review SEASONIC S12iii-500 Atx Power Supply Bronze New Sealed

The Seasonic S12III-500 is a high-performance, 500-watt ATX power supply unit (PSU) designed for modern computer systems. This reliable and efficient PSU is a part of Seasonic's S12III series, which is known for its quiet operation and exceptional power delivery.

The S12III-500 features a 80 Gold certification, ensuring an impressive efficiency level of up to 90% under typical loads. This translates to reduced power loss, lower operating temperatures, and ultimately, increased energy savings. The unit is also compatible with the latest PC components, including the latest Intel and AMD CPUs, as well as high-end graphics cards.

The PSU boasts a single 12V rail design, which provides a stable and consistent power output for the entire system. This design simplifies the power delivery and helps minimize voltage regulation losses. The PSU is also equipped with a DC-DC converter, which further enhances the overall system stability and reduces ripple and noise levels.

The Seasonic S12III-500 offers several advanced features, such as over-voltage protection (OVP), over-current protection (OCP), and short-circuit protection (SCP). These features help safeguard your components from potential damage caused by power surges, overloads, or short-circuits.

The unit's quiet operation is made possible by its low-noise fan design, which features Fluid Dynamic Bearing technology. This technology ensures long-lasting performance and minimizes fan noise, providing a virtually silent computing experience. Additionally, the PSU's compact dimensions and modular cabling make it an excellent choice for small form factor systems and simplified cable management.

The Seasonic S12III-500 is a high-quality, reliable, and efficient power supply solution for modern computer systems. Its advanced features, quiet operation, and compatibility with the latest components make it a top choice for builders and system integrators seeking exceptional performance and peace of mind.

The Seasonic S12III-500 and S12III-500 500W 80 certified power supplies are popular choices for PC builders due to their high efficiency, quiet operation, and robust build quality. Let's discuss some pros and cons of this power supply unit (PSU):

1. High Efficiency: With 80 Gold certification, the Seasonic S12III-500 ensures that at least 90% of the input power is converted to output power under typical loads. This results in less power wasted as heat, making it more energy-efficient and cost-effective.

2. Quiet Operation: The Fanless Mode feature allows the PSU to operate silently under low to medium loads, making it an excellent choice for quiet PC builds.

3. Robust Build Quality: The Japanese capacitors and the fanless design ensure a long lifespan and reliability for the power supply unit.

4. Compact Size: The Seasonic S12III-500 has a compact size, making it suitable for small form factor builds or cases with limited space.

1. Limited Connectivity: The power supply unit comes with a limited number of connectors, which might not be sufficient for some high-end systems with multiple GPUs or numerous peripherals.

2. Higher Price Point: Due to the high-quality components and features, the Seasonic S12III-500 comes at a higher price point than some other power supplies in its class.

In conclusion, the Seasonic S12III-500 is an excellent choice for PC builders who prioritize high efficiency, quiet operation, and robust build quality, even if it comes at a higher price point. Its compact size also makes it suitable for small builds or cases with limited space. However, if you require a larger number of connectors, you might want to consider other power supply options.

Recommendation: If you're building a PC with a focus on energy efficiency, quiet operation, and reliability, the Seasonic S12III-500 is an excellent choice. It's a worthwhile investment for those who value these features, even if the price point is slightly higher.

Details:

Protections: OPP, OVP, UVP, SCP. 80 PLUS Bronze certified efficiency. ATX 12V / EPS compatibility. Never opened or used.

Up for sale is a brand new, factory-sealed Seasonic S12III-500 Power Supply Unit PSU. Smart Silent Fan Control with ball bearing fan. Condition: Brand new and sealed in retail box. Box shows minor shelf wear and shrink wrap tears see photos.

Fixed cables for reliable connections. Key Features: model: S12III-500 SSR-500GB.

part #: s12iii500gb prices

• $45.00-$252.56

specifications powsuppy:

• brand: Seasonic
• mpn: S12iii-500gb
• voltage compatibility: 12 V
• connectors: 20 4 Pin, 4 4 Cpu, 6 2 Pin Pci Express
• form factor: Atx
• type: Atx12v
• maximum power: 500 W
• color: Black

returns powsuppy:

• policy: No Returns

general powsuppy:

• condition: New
• Computers/Tablet's Networking > Computer Components Parts > Power Supplies

payments powsuppy:

• wallet: Google-pay
• other
• credit card: Visa

offer powsuppy:

• availability: In Stock
• quantity: 1
• started: September 10, 2025
• sold: 0
• options: Ship-to-home

seller powsuppy:

• city: San Jose, California
• rating: 96.3%
• # reviews: 308

shipping powsuppy:

• transit: 5-10 Days
• type: Calculated
• class: Standard
• service: USPS Ground Advantage
• cost: $9.67
• carrier: USPS

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