Seasonic S12III-550 550W - 80+ Bronze Certified - 5 Years - Retail Box (NO OEM)

Overview

The Seasonic S12III-550 550W is a high-performance, 80+ Bronze certified power supply unit (PSU) designed for reliable and efficient power delivery. With 550W continuous output, this PSU is ideal for gaming, workstation, and home PC builds. It features active PFC, silent cooling, and durable components, ensuring long-term stability. The retail box packaging includes full documentation and accessories, and it comes with an extended 5-year warranty replacement.

How to Use/Install

Installing the Power Supply Unit

1. Turn Off & Unplug Your PC – Safety first before installation.
2. Open the PC Case – Remove the side panel for access to the PSU bay.
3. Position the PSU – Align the Seasonic S12III-550 550W in the PSU compartment.
4. Connect the Power Cables – Attach to the motherboard, GPU, and storage devices.
5. Secure the PSU – Use screws to mount it firmly.
6. Manage Cables & Close the Case – Ensure proper airflow before powering on.

Type of Services/Warranty Available

• 5-Year Warranty Replacement – Covers defects and failures for an extended period.
• Retail Box (Not OEM) – Includes all packaging, documentation, and necessary accessories.

Main Differences Between Services/Warranty

• Extended 5-Year Warranty – Offers longer coverage compared to standard 3-year PSU warranties.
• Retail Packaging – Ensures full product accessories and proper documentation, unlike OEM versions.

Key Features of the Seasonic S12III-550 550W

• 550W Continuous Power Output – Suitable for gaming PCs, workstations, and home systems.
• 80+ Bronze Certified – Delivers up to 85% energy efficiency under typical loads.
• Active PFC (Power Factor Correction) – Enhances power efficiency and stability.
• 120mm Silent Fan – Provides optimized cooling with low noise operation.
• Advanced Safety Protections – Includes OVP, OPP, SCP, and UVP for hardware security.
• Durable Components – Uses high-quality capacitors for long-term reliability.
• Fixed Cable Design – Pre-attached cables simplify installation.
• ATX Form Factor – Universal compatibility with most PC cases.
• Dual 12V Rails – Ensures consistent power delivery for high-performance components.
• 5-Year Warranty – Extended protection for long-lasting use.

Competitor Products

Two similar 550W 80+ Bronze PSUs competing with the Seasonic S12III-550 include:

• Corsair CV550 80+ Bronze – A budget-friendly PSU with a single 12V rail design.
• EVGA 550 BR 80+ Bronze – Features reliable performance and multiple safety protections.

The Seasonic S12III-550 550W is an excellent choice for users seeking a stable, efficient, and durable PSU for gaming, professional workloads, and general PC builds.