GIGABYTE P550SS 550W Power Supply

GIGABYTE P550SS | 550 W ATX 3.0 Bronze Power Supply

The GIGABYTE P550SS is a 550 W ATX 3.0 power supply unit designed for reliable PC builds. It delivers stable power output with 80 PLUS Bronze efficiency, making it a solid choice for mid-range gaming and productivity systems.

Key Specifications

Efficient 80 PLUS Bronze Power Delivery

The P550SS achieves 80 PLUS Bronze certification, ensuring at least 85 % efficiency under typical loads. This reduces wasted energy, lowers heat output, and keeps operational noise to a minimum. For UK users, this means lower electricity consumption and a cooler-running system.

ATX 3.0 Ready for Modern Components

Built to the Intel ATX 3.0 standard, the P550SS supports up to 200 % power excursion for demanding components like high-end graphics cards. It also meets Intel PSDG timing requirements, making it fully compatible with the latest hardware and future upgrades.

Quiet 120 mm Fluid Dynamic Bearing Fan

Equipped with a 120 mm FDB fan, the P550SS uses oil film shock absorption to reduce noise and extend lifespan beyond conventional designs. The fan speed automatically adjusts based on system load and temperature, keeping your build quiet during light use and effective under stress.

Reliable Single +12V Rail Design

A single +12V rail simplifies cable management and ensures stable power delivery across all components. This design is particularly beneficial for overclocking, where consistent voltage is critical for system stability and performance.

Built-In Protection Suite

The P550SS includes comprehensive protection features: over current (OCP), over voltage (OVP), over power (OPP), over temperature (OTP), under voltage (UVP), and short circuit (SCP). These safeguards help protect your components from electrical faults and ensure long-term reliability.

Box Contents

• GIGABYTE P550SS power supply unit
• Power cable
• Mounting screws
• User manual

Check Before You Buy

• Confirm your PC case has space for a 150 x 140 x 86 mm PSU
• Verify your system’s total power draw is within 550 W capacity
• Check that your motherboard uses a 20+4 pin ATX connector
• Ensure you have enough SATA and PCIe connectors for your drives and GPU

Frequently Asked Questions

Q: Is the P550SS compatible with ATX 3.0 motherboards?

A: Yes, it meets Intel ATX 3.0 specifications and supports modern hardware.

Q: How many PCIe connectors does it have?

A: It includes two 6+2 pin PCIe connectors for graphics cards.

Q: Can I use this for overclocking?

A: Yes, the single +12V rail and stable output make it suitable for mild overclocking.

Q: What is the MTBF rating?

A: The unit is rated for 100,000 hours mean time between failures.

Q: Does it have a UK plug?

A: The input supports 155–240 V, but confirm the included plug type before purchase.

The Consultant’s Verdict & Warranty

The GIGABYTE P550SS offers a balanced mix of efficiency, modern ATX 3.0 compliance, and quiet operation for mid-range systems. Its single +12V rail and comprehensive protection make it a dependable choice for both gaming and productivity builds. Covered by the standard Manufacturer Warranty.