Antec 550W EA550G PRO EarthWatts Gold Pro PSU

QuickFind: 810565 Mfr part code: 0-761345-11615-2
  • 80 Plus Gold Certified
  • Semi Modular
  • 100% Japanese Capacitors
  • Whisper-quiet, high-quality fan
  • 7 Year Warranty

Product Description

Antec 550W EA550G PRO EarthWatts Gold Pro PSU







The EarthWatts Gold Pro series features high performance with an 80 PLUS® GOLD rating, delivering up to 92% efficiency and reducing your electricity bill. Featuring hybrid modular cabling, a whisper-quiet 120mm fan controlled by Antec's renowned Thermal Manager, and CircuitShield™ Industrial Grade protection - all backed by our seven-year Antec Quality warranty, the EarthWatts Gold Pro series is the power supply all builders choose for a stable, quiet, and efficient system.

- 80 PLUS® Gold

- Advanced Hybrid Cable Management

- Japenese Heavy-Duty Caps

- Continuous Power

- 7 Year Warranty



EMI Shielding



Japenese Heavy-Duty Caps


12V Rail Stable Output. A server-class full-bridge LLC Design with a synchronous rectification




99% +12V Output

Engineered with high-quality capacitors and low-noise transformers, the EA Gold Pro series provides clean, stable power with maximum CPU and GPU compatibility.

Advanced Hybrid Cable Management




Compact Size

Push your system to the limit with peace of mind

Net Weight: 1.94Kgs

Gross Weight: 2.92Kgs

120mm Silence Fan

Efficiency Chart



  • 550W Continuous Power™ - Guarenteed 650W of Continuous Power™ from Antec
  • 80 PLUS® Gold certified - Up to 92% efficient, to reduce your electricty bill
  • AQ7 - Antec Quality 7 year warranty and lifetime global 24/7 support
  • 120 mm Silence - Whisper-quiet high-quality fan with long lifetime
  • Semi-modular cable management - improves airflow and reduces clutter
  • 99% +12V - Output for maximum CPU & GPU support
  • Japenese Heavy-Duty Caps - High-performance capacitors ensure DC stability and regulation
  • 4 x PCI-E connectors for multiple GPU support
  • ATX12V 2.4 - Engineered according to the newest PSU guideline and compatible with the latest CPU generation
  • PhaseWave™ Design - A server-class full-bridge LLC design wth a synchronous rectification based on a DC-DC topology
  • ErP Lot 6: 2013 - Compliant to the toughest energy standard available
  • CircuitShield™ - Full suite of industrial grade protections: Over Current Protection (OCP), Over Voltage Protection (OVP), Short Circuit Protection (SCP), Over Power Protection (OPP), Over Temperature Protection (OTP), Under Voltage Proetction (UVP), Surge & Inrush Protection (SIP), No Load Operation (NLO)

Technical Specification

Antec 550W EA550G PRO EarthWatts Gold Pro PSU


Features SLI ready, Intel 4th-gen CPU (Haswell) compatible, CircuitShield, semi-modular
Cooling System 120 mm fan
Compliant Standards TUV, CB, CCC, FCC, RoHS, cTUVus, Energy-Related Products (ErP) Lot 6

Dimensions & Weight

Width 15 cm
Depth 14 cm
Weight 1.94 kg
Height 8.6 cm

Power Device

Frequency Required 50 - 60 Hz
Input Voltage AC 100-240 V
Input Voltage Margin ± 10%
Power Output Connectors Details 1 x power 24 pin ATX with detachable 4 pin section ¦ 1 x power 8 pin EPS12V with detachable 4 pin ATX12V section ¦ 5 x 4 PIN internal power ¦ 2 x 8 pin PCI Express power with detachable 2 pin section ¦ 5 x 7 pin Serial ATA ¦ 1 x 4 PIN mini-power connector
Power Capacity 550 Watt
Output Current +5V - 20 A ¦ +3.3V - 20 A ¦ +12V1 - 42 A ¦ -12V - 0.5 A ¦ +5VSB - 3 A
Efficiency 91%
Modular Cable Management Yes
80 PLUS Certification 80 PLUS Gold


Device Type Power supply - active Power Factor Correction (PFC) - internal
Specification Compliance ATX12V 2.4/ EPS12V
PSU Form Factor ATX
Localisation United Kingdom

Manufacturer Warranty

Service & Support Limited warranty - 3 years ¦ Technical support - availability: 24 hours a day / Monday-Sunday

Environmental Parameters

Min Operating Temperature 0 °C
Max Operating Temperature 40 °C

Product Reviews

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Add-ons and Accessories

PSU Accessories

Premium Braided 30cm PSU Exention Cable Kit - Red

£14.99 inc. vat
£12.49 ex. vat