New in box Antec EarthWatts EA-650 650W desktop computer power supply.
This classic EarthWatts PSU provides 650 watts of power, 80 PLUS efficiency certification, Active PFC, and multiple +12V rails for desktop PC applications.
NEW IN BOX / NIB.
Power Supply Details
Brand: Antec
Series: EarthWatts
Model: EA-650
Type: Desktop Computer Power Supply / PSU
Maximum Power: 650W
Form Factor: ATX
Specification: ATX12V Version 2.2
Efficiency Certification: 80 PLUS
PFC: Active PFC
Input Voltage: 100–240V AC
+12V Rails: 3
Cooling: 120mm fan
Modular: No
Condition: New in Box / NIB
Antec’s original documentation confirms that the EA-650 was designed to the ATX12V 2.2 specification and uses three +12V rails. It also includes over-current, over-voltage, and short-circuit protection.
Connections
Published specifications for the original EA-650 include:
20+4-pin ATX motherboard connector
CPU +12V connection
6 SATA power connectors
PCI Express power connectors
Peripheral / Molex connections
The original manual confirms support for 20- or 24-pin motherboard power, SATA devices, peripheral devices, and PCI Express graphics-card power.
A period retail specification lists the original EA650 with one 6-pin and one 6+2-pin PCIe connector, six SATA connectors, and three +12V rails.
Condition
NEW IN BOX / NIB.
The power supply is being sold as new old stock in its original packaging.
Please review all photographs carefully for the exact condition of the:
Original box
Power supply housing
Cables and connectors
Power cord
Manuals / paperwork
Factory packaging
Labels and specifications
The original packaging may show normal shelf or storage wear from age.
Unless the box is visibly factory sealed, I would not describe it as “factory sealed” or “unopened.”
Because this is older new-old-stock electronics, no claim should be made regarding current powered operation unless the unit has actually been removed and tested.
The photographs are considered part of the condition description.
80 PLUS / Power Features
The EarthWatts series was designed around improved efficiency for its era.
Antec’s original manual confirms:
80 PLUS certification
Active Power Factor Correction
Universal 100–240V input
Over Current Protection (OCP)
Over Voltage Protection (OVP)
Short Circuit Protection (SCP)
This makes the EA-650 useful for older PC builds, period-correct gaming systems, replacement applications, and collectors restoring late-2000s desktop hardware.
Compatibility Note
This is an older-generation ATX desktop power supply.
Buyers should verify compatibility with their motherboard, graphics card, case, CPU power requirements, and required connector configuration before purchase.
Modern GPUs and motherboards may require power connectors or newer ATX specifications that this original EA-650 does not provide.
Shipping & Handling
The original Antec retail box will be protected inside appropriate outer shipping packaging.
Additional protection will be provided around the:
Power supply
Attached cables
Connectors
Original packaging
Corners and edges
No shipping label or tape will be applied directly to the original retail box when an outer carton is used.
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