Antec EarthWatts Platinum 650W Review & Specs

Antec EarthWatts Platinum 650W 80 PLUS Platinum EA-650

Antec EarthWatts Platinum 650W 80 PLUS Platinum EA-650

- Antec

★ ★ ★ ★ ★
(30 reviews)

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  • 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. By using the EA-650 Platinum, you can reduce your computer's power consumption by 25%. A 3 year Antec Quality warranty, a whisper-quiet 120mm DBB fan controlled by Antec's renowned Thermal Manager and CircuitShield™'s industry-leading 7 levels of protection make the EA-650 Platinum one of the best choices available. Get the power you need, save money and help protect the environment with Antec's EA-650 Platinum!

Specifications Overview

Model EA-650 Platinum
Wattage 650W
Type ATX12V / EPS12V
Modular No
Efficiency 80+ Platinum
Output +5V@18A, +3.3V@20A, +12V1@30A, +12V2@30A, +12V3@30A, +12V4@30A, -12V@0.3A, +5VSB@3A
PCI-Express 6+2 Pin Connectors 2
EPS Connectors 1
SATA Connectors 6
Molex Connectors 4


  • 80PLUS Platinum
  • Low price for Platinum unit
  • Very quiet


  • Not modular
  • Voltage regulation could be better
  • Only two PCIe connectors
  • 650W Continuous Power — Guaranteed 650W 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 — 2 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
    - 1 x 24-pin
    - 1 x 8(4+4)-pin ATX12V/EPS12V
    - 2 x 8(6+2)-pin PCI-E
    - 4 x Molex
    - 6 x SATA
    - 1 x Floppy
    - Operating Temperature: 0°C — 50°C
    - Safety Approvals: UL, cUL, CB, CE, FCC, TÜV, BSMI, CCC, C-Tick, GOST-R, KCC
  • Net Weight: 4.4 lbs / 2.0 kg
  • Size:
    - 3.4" (H) x 5.9" (W) x 5.5" (D)
    - 86 mm (H) x 150 mm (W) x 140 mm (D)

Voltage Range
MAX Reg. OCP Set
Point Ripple &

  +5V   18A   ±5%   26A-35A 50mV


  ±5%   26A-35A 50mV
  +12V1   30A   ±5%   35A-45A 120mV
  +12V2   30A   ±5%   35A-45A 120mV
  +12V3   30A   ±5%   35A-45A 120mV
  +12V4   30A   ±10%   35A-45A 120mV
  -12V   0.3A   ±5%     120mV
  +5VSB   3A   ±5%     50mV

+5V and +3.3V combined max. output: 105W

+12V outputs combined max. output: 576W


Input Voltage   100~240VAC ±10%
Input frequency Range   50Hz ~ 60Hz
Efficiency   Up to 93%

Critic Reviews


Antec have been selling power supplies now for as long as I can remember and their sales have been so strong that they claim they have taken the top spot worldwide. They have also announced that their return rate is the lowest in the industry.Today...

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Quality (30% of the total score) Quality is probably the one thing a reviewer can rarely ever complain about when examining an Antec product. The Earthwatts Platinum 650W unit is no exception to that rule; not that it is perfect but it certainly is...


It has been a long time since we reviewed, let alone liked, a non-modular power supply in Atomic. When building a PC it's far more convenient to not have to deal with extraneous cabling than it is to save the few bucks by going with an all captive...

PC Authority

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