EA-550 Platinum


Where to Buy

Eco-friendly, Efficient PSU

Antec’s EarthWatts Platinum is one of the most efficient PSU series ever created. With an 80 PLUS® PLATINUM rating, the highest efficiency mark for power supplies, this PSU achieves up to 93% efficiency and gives you savings unheard of from other power supplies. Get the power you need, save money and help protect the environment with Antec’s EA-550 Platinum!

EA-550 Platinum

Features and Specs


If you are looking for a strong, stable and reliable PSU that will last you for years, you'll want one that runs on Continuous Power. Antec PSUs always use Continuous Power to deliver consistent, stable wattage to your entire system. You can believe that whenever Antec advertises a rated wattage, that is exactly what you'll get: stability and continuous power. No exceptions. Along with 4 fully protected +12V high current rails with high load capabilities to ensure maximum CPU & GPU compatibility, the EA-550 Platinum is definitely worth every cent

80 PLUS® Platinum certified

80 PLUS Certification Saving energy has become an important factor when choosing the correct power supply. The EA-550 Platinum has an up to 93% efficiency to reduce your electricity bill by up to 25%!. This power supply provides efficiency during max and low loads and lives up to the standards of today's world.

Reliability you can count on

The EA-550 Platinum is backed with AQ3 - Antec Quality 3 year parts and labor warranty, and you get unlimited access to Antec's incomparable technical support and customer service.

high standard in engineering

A power supply converts mains AC to low-voltage regulated DC power for the internal components of a computer. Several direct-current voltages are required, and they must be regulated with some accuracy to provide stable operation of the computer. This is where the quality of Antec power supplies differ from the rest. Antec's high performance 100% Japanese heavy-duty capacitors ensures the tightest DC stability and regulation. So you can rest assure that this power supply will last you for multiple builds to come.

Overall Features

• 550W Continuous Power - Guaranteed 550W of Continuous Power from Antec
• 80 PLUS® PLATINUM certified - Up to 93% efficient, to reduce your
electricity bill
• Save Energy and Money - Reduce your electricity bill by up to 25%!
• AQ3 - Antec Quality 3 year warranty and lifetime global 24/7 support
• 120 mm DBB Silence - Whisper-quiet high-quality double ball bearing fan with
long lifetime
• Thermal Manager - An advanced low voltage fan control for optimal heat &
noise management
• High Current Rails - 4 fully-protected High Current +12V rails with high load
capabilities ensure maximum CPU & GPU compatibility
• Multi PCI-E - 2 PCI-E connectors for multiple GPU support
• CircuitShield™ - Over Current Protection (OCP), Over Voltage Protection (OVP),
Under Voltage Protection (UVP), Short Circuit Protection (SCP), Over Power
Protection (OPP), Surge & Inrush Protection (SIP), No Load Operation (NLO) &
Brown-Out Protection (BOP)
• Japanese heavy-duty caps - High-performance Japanese capacitors ensure
tightest DC stability and regulation

Technical Specifications
Series Earthwatts
Part Number 0-761345-27520-0
Type Power Supply
Compliant with ATX12V 2.4 & EPS12V 2.92
Efficiency 80 PLUS® PLATINUM
Wattage 550W
Additional Information Additional Information
  +3.3V +5V +12V1 +12V2 +12V3 +12V4 -12V +5Vsb
MIN 0.1A 0.2A 0.1A 0A 0A 0A 0A 0A
MAX 16A 16A 30A 30A 30A 30A 0.3A 3A
TOTAL 95W 516W 3.6W 15W
Static Characteristics
  +3.3V +5V +12V1 +12V2 +12V3 +12V4 -12V +5Vsb
Regulation ±5% ±5% ±5% ±5% ±5% ±5% ±10% ±5%
Ripple & Noise ≤50mV ≤50mV ≤120mV ≤120mV ≤120mV ≤120mV ≤120mV ≤50mV
Other Specifications
Input Voltage 100VAC - 240VAC ~ ±10% (Active PFC)
Input Current 8A - 4A
Input Frequency 50Hz - 60Hz
PFC active
Operating Temperature 0⁰ C - 50⁰ C
MTBF ≥ 100,000 hours
PROTECTIONS Brown-Out Protection (BOP), No Load Operation (NLO), Over Current Protection (OCP), Over Power Protection (OPP), Over Voltage Protection (OVP), Short Circuit Protection (SCP), Surge & Inrush Protection (SIP), Under Voltage Protection (UVP)
Safety Certificates UL/cUL, FCC, CB, CE, TÜV, CCC, C-Tick, BSMI, Gost-R
Origin Made in China
Dimensions & Weight
Model 3.4" x 5.9" x 5.5" (HxWxD) / 86 mm x 150 mm x 140 mm (HxWxD)
Net Weight 4.2lbs / 1.9 kg
Unit Carton 8.3" x 9.1" x 4.3" (HxWxD) / 210 mm x 230 mm x 110 mm (HxWxD)
Gross Weight 5.3lbs / 2.3 kg


20+4 pin

1 X 20+4 pin

6+2 PCI-E

2 X 6+2 PCI-E




4 X Molex


1 X floppy

4+4 Pin ATX/EPS

1 X 4+4 Pin ATX/EPS

Manual Download File type File size
EA-550 Platinum Manual EN 769.23 Kb
Product Flyer Download File type File size
EA-550 Platinum Flyer EN 274.58 Kb
Other Material Download File type File size
Award Publisher Title Language Date
eteknix.com EA-550 Platinum Antec’s EarthWatts Platinum 450W power supply is an interesting unit. It essentially is a budget 450W power supply “shell” with all its internals up-rated to give 80 Plus Platinum efficiency...

Read review
en 2013-09-10
Back2Gaming EA-550 Platinum "All in all, Antec has created a very quality power supply that should fit nicely with any PC. It may not be modular nor flashy but it does its job nicely. Antec backs its EarthWatts Platinum power...

Read review
en 2012-09-24

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