Aigo G5 HJ Plus GP550 550W 80+ Bronze Power Supply

Power your PC build with confidence using the Aigo G5 HJ Plus GP550 550W 80+ Bronze Certified Power Supply. Delivering reliable 550W of continuous power with 80 Plus Bronze efficiency certification, this non-modular ATX power supply features Active PFC, comprehensive protection circuits, intelligent temperature-controlled PWM fan, and full compatibility with Intel and AMD platforms. Perfect for mainstream gaming builds, workstations, and everyday computing systems requiring stable, efficient power delivery.

Key Features

• 550W Rated Power - Reliable continuous power for mid-range systems
• 80 Plus Bronze Certified - Up to 85% efficiency at typical loads
• Active PFC - Power Factor Correction for stable power delivery
• Single +12V Rail (48A) - Powerful 576W on +12V rail for modern components
• 120mm Silent Fan - Hydraulic bearing fan with intelligent temperature control
• Comprehensive Protection - OVP, OCP, OPP, UVP, SCP protection circuits
• ATX 12V Standard - Compatible with all modern motherboards
• Multi-GPU Ready - Dual PCIe 6+2 pin connectors for graphics cards
• 3 Year Warranty - Manufacturer warranty for peace of mind

Technical Specifications

Power Output Rails

Cable & Connector Configuration

Motherboard Power:

• 1x 20+4 Pin ATX: Main motherboard power connector
• 1x 4+4 Pin EPS12V: CPU power connector (P4+4)

PCIe Graphics Card Power:

• 2x 6+2 Pin PCIe: For graphics cards (can be used as 6-pin or 8-pin)

Storage Device Power:

• 4x SATA Power: For SATA SSDs and HDDs
• 2x Molex (4-Pin IDE): For legacy devices and peripherals

80 Plus Bronze Efficiency

The Aigo GP550 is 80 Plus Bronze certified, meaning it achieves at least 82% efficiency at 20% load, 85% efficiency at 50% load, and 82% efficiency at 100% load. This certification ensures:

• Lower Power Bills: Less wasted electricity means lower energy costs
• Less Heat Generation: Higher efficiency means less heat dissipation
• Quieter Operation: Lower temperatures allow fan to run slower and quieter
• Environmental Benefits: Reduced energy waste and carbon footprint
• Component Longevity: Cooler operation extends PSU lifespan

Efficiency Performance:

Active PFC Technology

Active Power Factor Correction (PFC) improves the efficiency of power delivery from the wall outlet to your PC components. The Aigo GP550 features Active PFC circuitry that provides:

• Power Factor > 0.9: Near-perfect power factor for optimal efficiency
• Universal Input: Wide voltage range (160V-264V) for global compatibility
• Reduced Harmonics: Cleaner power draw from the electrical grid
• Better Voltage Regulation: Stable output voltage under varying loads
• Lower Heat Generation: More efficient power conversion means less waste heat

Single +12V Rail Design

The Aigo GP550 utilizes a single +12V rail design with 48A capacity, providing up to 576W of power on the +12V rail. This modern approach offers several advantages:

• Simplified Power Distribution: No need to balance components across multiple rails
• Maximum Flexibility: Full 48A available to any component or combination of components
• High-Power GPU Support: Sufficient amperage for modern graphics cards up to ~200W TDP
• Multi-GPU Ready: Power dual mid-range graphics cards simultaneously
• Future-Proof: Accommodate power-hungry components without rail limitations

Intelligent Cooling System

The Aigo GP550 features a 120mm hydraulic bearing (HDB) fan with intelligent temperature-controlled PWM operation. This advanced cooling system provides:

120mm Hydraulic Bearing Fan:

• Large Air Volume: 120mm fan moves more air at lower RPM for quieter operation
• Hydraulic Bearing (HDB): Longer lifespan and quieter operation than sleeve bearings
• Low Noise: Quiet operation even under load
• High Reliability: HDB design rated for 50,000+ hours of operation

Intelligent Temperature Control (PWM):

• Dynamic Fan Speed: Fan automatically adjusts speed based on internal temperature
• Quiet at Idle: Fan runs at low speed during light loads for near-silent operation
• Responsive Cooling: Fan ramps up quickly when temperature rises
• Extended Lifespan: Running at lower speeds when possible extends fan life
• Energy Efficient: Variable speed operation reduces power consumption

Comprehensive Protection Circuits

Safety is paramount in power supply design. The Aigo GP550 includes multiple protection circuits to safeguard your valuable PC components:

• OVP (Over Voltage Protection): Shuts down PSU if output voltage exceeds safe limits
• OCP (Over Current Protection): Protects against excessive current draw on any rail
• OPP (Over Power Protection): Prevents PSU from delivering more than rated power
• UVP (Under Voltage Protection): Shuts down if voltage drops below minimum threshold
• SCP (Short Circuit Protection): Immediately shuts down if short circuit detected
• OTP (Over Temperature Protection): Shuts down if internal temperature exceeds safe limits

Protection Benefits:

• Prevents component damage from power irregularities
• Protects motherboard, CPU, GPU, and other components
• Extends lifespan of PSU and connected components
• Provides peace of mind for system stability
• Automatic recovery after fault condition clears

High-Quality Components

The Aigo GP550 is built with quality components to ensure reliable, long-term operation:

• Dual Magnetic Ring Design: Magnetic amplifier circuit for stable power delivery
• High-Frequency Capacitors: Low ESR filter capacitors for clean, stable output
• 105°C Capacitors: Japanese or Taiwan-made capacitors rated for high temperatures
• Solid Copper Wiring: Low resistance cables for efficient power transfer
• Heavy-Duty PCB: Robust circuit board design for reliability
• EMI Filter: Reduces electromagnetic interference

Compatibility & Platform Support

CPU Platform Compatibility:

• Intel: All Intel desktop processors (Socket LGA1700, LGA1200, LGA1151, LGA1150, etc.)
• AMD: All AMD desktop processors (Socket AM5, AM4, AM3+, FM2+, etc.)

Motherboard Compatibility:

• ATX motherboards (full-size)
• Micro-ATX motherboards
• Mini-ITX motherboards
• E-ATX motherboards (check case clearance)

Graphics Card Support:

• Single GPU: Up to ~250W TDP (e.g., RTX 4060, RX 7600 XT)
• Dual GPU: Two mid-range cards with combined TDP up to ~300W
• Recommended System Power: 350-450W total

Ideal System Configurations

Entry-Level Gaming Build:

• Intel Core i3 or AMD Ryzen 3 processor
• Budget graphics card (GTX 1650, RX 6500 XT)
• 8GB-16GB RAM
• SSD + HDD storage
• Estimated System Power: 250-300W

Mid-Range Gaming Build:

• Intel Core i5 or AMD Ryzen 5 processor
• Mid-range graphics card (RTX 4060, RX 7600, RTX 3060)
• 16GB-32GB RAM
• NVMe SSD + additional storage
• RGB lighting and case fans
• Estimated System Power: 350-420W

Home/Office Workstation:

• Intel Core i5/i7 or AMD Ryzen 5/7 processor
• Professional graphics card or integrated graphics
• 16GB-64GB RAM
• Multiple storage drives
• PCIe expansion cards
• Estimated System Power: 250-350W

Multimedia Content Creation:

• Intel Core i7 or AMD Ryzen 7 processor
• Mid-range GPU for video encoding (RTX 4060)
• 32GB+ RAM
• Multiple NVMe SSDs
• Capture cards and peripherals
• Estimated System Power: 350-450W

Installation & Setup

Installation Steps:

1. Verify Compatibility: Ensure your case supports ATX power supplies (160mm length)
2. Position PSU: Install with fan facing downward (if case has bottom vent) or facing up
3. Secure Mounting: Use four screws to secure PSU to case
4. Connect Motherboard: Attach 24-pin ATX and 8-pin EPS12V connectors
5. Connect Graphics Card: Attach PCIe 6+2 pin connectors as needed
6. Connect Storage: Attach SATA power connectors to SSDs and HDDs
7. Cable Management: Route cables neatly and secure with ties
8. Power On: Switch PSU power switch to ON position before booting

Installation Tips:

• Always turn off and unplug PSU before making connections
• Ensure all connectors are fully seated and locked in place
• Don't force connectors - they're keyed to prevent incorrect insertion
• Use proper cable management to improve airflow
• Allow adequate clearance for PSU fan ventilation (minimum 10mm)
• Keep PSU air intake free from dust and obstructions

Power Consumption Calculator Guide

To ensure the Aigo GP550 is sufficient for your system, calculate your total power consumption:

Component Power Estimates:

Safety Margin: Add 20% headroom to your calculated total for safe, efficient operation.

Example Calculation:

• Intel Core i5-12400F: 65W
• RTX 4060: 115W
• Motherboard: 60W
• 16GB RAM (2x8GB): 8W
• 500GB NVMe SSD: 4W
• 1TB HDD: 7W
• 3x Case Fans: 9W
• RGB Lighting: 10W
• Total: 278W
• With 20% headroom: 334W
• Result: Aigo GP550 is more than sufficient (550W rated)

Maintenance & Care

Regular Maintenance:

• Dust Removal: Clean PSU fan and vents every 3-6 months using compressed air
• Ventilation Check: Ensure PSU has adequate airflow and intake is unobstructed
• Cable Inspection: Periodically check cables for damage or wear
• Temperature Monitoring: Listen for excessive fan noise indicating high temps
• Electrical Safety: Ensure power outlet is properly grounded

Signs of PSU Issues:

• System randomly shuts down or restarts
• Unusual noises from PSU (grinding, buzzing, clicking)
• Burning smell or visible damage
• System instability or crashes under load
• GPU or CPU underperforming due to insufficient power

Certifications & Standards

• 80 Plus Bronze: Energy efficiency certification
• CB: International safety certification
• CCC: China Compulsory Certification
• FCC Class B: Electromagnetic interference standards (USA)
• CE: European Conformity marking
• RoHS: Restriction of Hazardous Substances compliance
• ATX 12V: Complies with ATX12V power supply design guide

What's in the Box

• 1x Aigo GP550 550W Power Supply Unit
• 1x AC Power Cable (region-specific)
• 4x Mounting Screws
• User Manual & Documentation
• Warranty Card

Warranty & Support

3 Year Manufacturer Warranty - This product comes with a 3-year manufacturer warranty from Aigo. Additionally, this product is covered by our comprehensive store warranty. For complete warranty terms and conditions, please visit our warranty information page.

Warranty Coverage Includes:

• Manufacturing defects
• Component failures under normal use
• Power delivery issues
• Fan failure or excessive noise

Warranty Does NOT Cover:

• Damage from power surges (use a surge protector)
• Physical damage or improper installation
• Damage from overloading beyond rated capacity
• Liquid damage or environmental damage
• Normal wear and tear

Frequently Asked Questions

Q: Is 550W enough for an RTX 4060 or RX 7600?
A: Yes! The Aigo GP550 provides ample power for systems with RTX 4060 (115W TDP) or RX 7600 (165W TDP) graphics cards. A typical system with Core i5/Ryzen 5 + RTX 4060 consumes approximately 300-350W under full load, leaving plenty of headroom.

Q: What's the difference between modular and non-modular power supplies?
A: The Aigo GP550 is non-modular, meaning all cables are permanently attached. Modular PSUs allow you to detach unused cables for cleaner cable management. Non-modular PSUs are typically more affordable and perfectly suitable for most builds with proper cable management.

Q: What does 80 Plus Bronze certification mean?
A: 80 Plus Bronze means the PSU achieves at least 82% efficiency at 20% and 100% load, and 85% efficiency at 50% load. This results in lower electricity bills, less heat generation, and quieter operation compared to non-certified PSUs.

Q: Can I use this PSU with a high-end graphics card like RTX 4070?
A: While the GP550 has sufficient wattage (RTX 4070 TDP ~200W), high-end GPUs often recommend 650W+ PSUs for headroom and stability. For RTX 4070 and above, we recommend upgrading to a 650W or higher PSU to ensure stable operation under peak loads.

Q: What's the advantage of Active PFC?
A: Active PFC provides better power efficiency, universal voltage compatibility (works worldwide with 160V-264V input), reduced electrical noise, and compliance with power quality standards. It's superior to Passive PFC found in budget PSUs.

Q: How loud is the fan?
A: The 120mm hydraulic bearing fan is designed for quiet operation. With intelligent temperature control, the fan runs at low speeds during light loads (near-silent) and ramps up only when needed. Most users report it's very quiet during normal desktop use and moderate gaming.

Q: Can I install this PSU with the fan facing up or down?
A: If your case has bottom ventilation with a dust filter, install with fan facing down for better cooling. If there's no bottom vent or your case sits on carpet, install with fan facing up to draw air from inside the case. Both orientations work fine.

Q: What's the single +12V rail design?
A: A single +12V rail provides all 48A (576W) on one unified +12V output, rather than splitting it across multiple rails. This simplifies power distribution and eliminates the need to balance components across different rails, while still providing overcurrent protection.

Q: Will this power supply work with my country's voltage?
A: Yes! The Aigo GP550 features universal input voltage (160V-264V) and works with electrical systems worldwide. The included power cable is region-specific - if you need a different cable, standard C13/C14 (IEC) cables are universally available.

Q: How do I know if my system draws too much power?
A: Signs include random shutdowns under load, system instability, GPU underclocking, or the PSU's overcurrent protection triggering. Use the power calculator guide above to estimate your system's power draw. Always maintain 20% headroom for safety and efficiency.

Why Choose Aigo GP550?

• Proven Reliability: 80 Plus Bronze certification ensures quality and efficiency
• Great Value: Affordable price without compromising essential features
• Sufficient Power: 550W supports mainstream gaming and productivity builds
• Quality Components: Active PFC, 105°C capacitors, dual magnetic ring design
• Comprehensive Protection: Six protection circuits safeguard your components
• Quiet Operation: 120mm intelligent PWM fan for low noise
• Multi-GPU Ready: Dual PCIe connectors for graphics card flexibility
• Long Warranty: 3-year manufacturer warranty for peace of mind
• Universal Compatibility: Works with all Intel and AMD platforms

Important Notes

Always calculate your system's total power consumption before purchasing a power supply. Ensure your case has adequate space for a standard ATX PSU (160mm x 150mm x 85mm).

Power supply specifications are subject to manufacturing variances. Actual performance may vary slightly from listed specifications.

For optimal performance and longevity, maintain adequate ventilation around the power supply and keep the intake fan area clean and dust-free.

Build your PC with confidence using the Aigo G5 HJ Plus GP550 - reliable power for your computing needs!

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