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Antec EarthWatts EA-380D Green 380 Watt 80 PLUS BRONZE Power Supply

by Antec
4.6 out of 5 stars 147 customer reviews
| 7 answered questions

List Price: $54.95
Price: $54.64 & FREE Shipping. Details
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  • 380Watt Bronze Certified ATX12V v2.3 power supply, with Dual 12V output circuits. PFC up to 99%
  • Includes, Universal Input, Active Power Factor Correction (PFC)
  • Connectors feature, EPS 8pin(4+4) and 1- 6pin PCI-E, 1 - 20+4 MoBo, 5 SATA, 4 Molex and 1 floppy. Includes 80mm low noise cooling fan.
  • Help save the environment with this EarthWatts Green PSU, it comes WITHOUT the AC cord so use the one you are upgrading from!
  • Antec always uses Continuous Power for all labels and model names.
54 new from $45.00 3 used from $23.99
$54.64 & FREE Shipping. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Antec EarthWatts EA-380D Green 380 Watt 80 PLUS BRONZE Power Supply
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  • Samsung 850 EVO 250GB 2.5-Inch SATA III Internal SSD (MZ-75E250B/AM)
Total price: $161.11
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Technical Details

  • Brand Name: Antec
  • Model Number: EA-380D GREEN

Product Description

Product Description

Get the power you need and the low electric bill you want with Antec’s EarthWatts 380D Green! One of the most powerful supplies on the planet,the EA-380D Green delivers 380 watts of reliable, continuous power while meeting the Bronze level of performance from 80 PLUS, the most widely recognized independent standard in power supply efficiency. Plus, the EA-380D Green boasts Universal Input and a quiet 80mm fan to keep everything cool. “Go green” with Antec’s EA-380D Green: an efficient, cost-effective power supply solution that lets you power your equipment, save money and protect the environment. To help protect the environment even more, this unit does not come with and AC cord, just re-use the one it is replacing!

From the Manufacturer

With 380 Watts of continuous power, the Antec EarthWatts EA-380D Green PC Power Supply not only provides a cost-effective power solution, but also helps you save money and protect the environment. The EA-380D features a quiet, 80-millimeter fan, two +12-Volt output circuits for added system stability and safety, Universal AC Input, industrial-grade circuit protection, and a wide variety of connectors for swift customization.

callout box top
EarthWatts EA-380D Green
PC Power Supply

At a Glance:
  • 80 PLUS Bronze certification indicates 82-percent (or greater) energy efficiency

  • Universal Input

  • 80-millimeter low-noise cooling fan

  • Industrial-grade protection circuitry prevents damage

  • Backed by a three-year limited warranty
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Antec EarthWatts EA-380D Green PC Power Supply
The efficient power supply helps you save energy while reducing heat. View larger.

Antec EarthWatts EA-380D Green PC Power Supply
Different power-supply connectors give you multiple options for customizing your case. View larger.
Highly Efficient Power Supply Saves Energy

The Antec EarthWatts EA-380D Green PC Power Supply meets the Bronze level of efficiency from 80 PLUS, the most widely recognized independent standard in power-supply efficiency. With this certification, you can rest assured that the EA-380D is at least 80-percent (or greater) energy efficient, meaning you will save energy while reducing heat output and fan noise.

Help the Environment and Save Money

An Active Power Factor Correction (PFC) ensures a power factor of up to 99-percent, which reduces transmission losses and improves efficiency for power companies, making Active PFC an important feature for the environment. The EA-380D is also EUP compliant for efficiency and low standby power consumption.

Industrial-grade Protection Circuitry Prevents Damage

With industrial-grade protection circuitry that protects both the power supply and other equipment, the EA-380D safely guards your system against short circuits, power overloads, overvoltage, and other electrical dangers. It also boasts UL, CUL, FCC, T�V, CE, CB, C-tick, CCC, and BSMI safety approvals, and an 80-millimeter low-noise fan keeps the power supply cool for extended use.

Universal Input for Increased Versatility

The Universal Input feature allows you to automatically connect your EA-380D to any power grid in the world within 90-240 VAC without having to adjust the input-power select switch.

Assortment of Power Supply Connectors

An assortment of power-supply connectors provides multiple options for customizing your case. The 24-pin power connector goes to the motherboard, the ATX/EPS connector allows for a dedicated power supply to the processor, and two PCI-E connectors (6-pin and 6+2 pin) are used for PCI Express graphics cards. In addition, there are connectors for hard-disk drives, floppy drives, and SATA drives.

Technical Details

Weighing 3.6 pounds, the EA-380D measures 3.4 x 5.9 x 5.5 inches (H x W x D). It has dual +12-Volt output circuits for a maximum combined output of 336 Watts.

The Antec EarthWatts EA-380D Green PC Power Supply is backed by a three-year manufacturer's limited warranty.

What's in the Box

EarthWatts EA-380D Green PC Power Supply (power cord not included; you'll want to reuse your existing cord to help reduce waste and protect the environment).

Antec Logo
Power Supplies
EarthWatts EA-500D Green PC Power Supply
EarthWatts EA-500D
EarthWatts EA-430D Green PC Power Supply
EarthWatts EA-430D
EarthWatts EA-380D Green PC Power Supply
EarthWatts EA-380D
Continuous Power 500 watts 430 watts 380 watts
80 plus Yes Yes Yes
Universal Input Yes Yes Yes
Fan 80mm 80mm 80mm
ATX12V Version 2.3 Yes Yes Yes
APFC Yes Yes Yes
6-pin PCI-E 1 1 1
8-pin(6+2) PCI-E 1    
3.4" x 5.9" x 5.5" 3.4" x 5.9" x 5.5" 3.4" x 5.9" x 5.5"

Product Details

User's Guide [646kb PDF]
  • Product Dimensions: 5.5 x 5.9 x 3.4 inches ; 3.5 pounds
  • Shipping Weight: 4.3 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B002UOR17Y
  • Item model number: EA-380D GREEN
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (147 customer reviews)
  • Amazon Best Sellers Rank:
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
  • Date first available at Amazon.com: September 14, 2004

Customer Reviews

Top Customer Reviews

Verified Purchase
I decided to put a PC in my kitchen, which probably tells you that I am not married. However, even by bachelor standards, the old parts I used to build it were too noisy and unreliable. A major culprit was the power supply. That led me to the Earthwatts, which was very affordable.

After using it for a while, I have been impressed with the lack of fan sound. It is almost silent and very impressive for a power supply in this price range. By switching to a fanless video card, I was able to make a PC that is essentially silent. I actually thought that I hadn't hit the power button properly or that something was defective before the projector found the signal.

Yes, a projector in the kitchen. I will be single for life.

The EarthWatts has been pretty perfect for my needs, and I regret not putting more thought into the power supply for my main PC. I think it is a good choice if the price remains competitive. If reliability is an issue, I will update this review and start dating.
2 Comments 33 of 36 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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This is probably the best available power supply for small systems.

You should realize that most power supplies are WAY over-powered for common needs. It is truly a case of more is less. Let me explain: power supplies run their most efficient at 50% of their total rating. It is at the 50% mark that the efficiency ratings are based (80 plus, bronze, etc).

I strongly recommend getting a killawatt to determine how much system power you will need to function, then base a power supply selection on that. In my case, my HTPC (i3-3225 on an asrock z77 pro4m, 16gb RAM, 120gb SSD and 1tb HDD) was only consuming 48Watts at max usage. If I'm only running 50W (as I confirmed with my Kill-a-watt), technically I should get a power supply sized at 100W. But there really isn't a power supply that small! The popular Antec EA-380D Green at 380W, (tiny by market standards), is still overkill for my system. It may even be running outside the specs that qualify it for its 80 Plus Bronze certification! But it's the closest thing I can find.

Other pros: the fan is very quiet.

Very happy with this! 5 stars

Update 1/1/2014:
Still going strong over 1 year into using. I've generously upgraded the storage of my system, I still find plenty of expansion room in my power needs. Would absolutely buy again.

Update 7/1/2014
I recently added a UPS backup to the system. One of the great features about a small power supply such as this is the capability to use a non true sine-wave UPS. Usually for active PFC power supplies such as this one, a pure sine wave is required(which can be very expensive). However given the low power rating, 380, you can get away with an approximated sine wave. I am currently using an APC Back-UPS 550 (BE550G), which I can confirm is compatible with the EA-380D.

Update 10/7/2015
3 years and counting. Not one hitch. System on nearly 24/7 as media center server/HTPC.
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Verified Purchase
Update: 01/11/2016

Nearly four years later, this PSU is still working with zero issues. I've added a couple more of peripherals since then, which has understandably pushed the power consumption to about 10W more on idle. Other than that, I don't see any sign of deterioration. I upped the rating to its well-deserved 5 stars. It is definitely one of the best products I have ever purchased.

I was looking for a replacement for my generic PSU, since my system at times felt like it didn't want to power up: it seemed it didn't have enough power. I have a couple of other desktops that run off ANTEC PSUs, and I have had no problems with them over the years. After reading the reviews, I decided to purchase this one because it's got good reviews and is 80 plus bronze. I thought I could save some energy as well. It worked right out of the box with no issues and as far as power consumption is concerned, here are the numbers from my Kill-a-Watt meter:

Old system on Idle: 66-68W
System with 380D on Idle: 57-60W

Old system running at full: 100-105W
System with 380D at full: 85-90W

I believe it would have saved more power if it had a max. output of, say, 300W instead of 380W, since at lower loads, it is not running as efficiently as it is at higher ones. I am not using this particular system for any kind of gaming and I don't have a lot of cards or drives in my system; a 380W PSU is definitely an overkill. I wish they offered one with a smaller output.

My take on this is that if your system is running at more than 80W at idle and 120W at full and there are some issues with your generic PSU, then it would probably be justified to spend $45 for this. Otherwise, you are better off sticking to your existing PSU until its end of life. (I ran some numbers. The savings on my annual energy bill would just be about $5. It would take 9 years to recoup the cost.)
1 Comment 20 of 23 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Verified Purchase
Length: 9:53 Mins
I was looking to fix a "E-machine Model W3644" computer with a blown power supply for a customer and it needed a ATX ("A"dvanced "T"echnology e"X"tended) sized replacement that didn't need such a high wattage. The 380 watts on this seemed an excellent range to purchase and install. It was well packaged when it arrived. It has a cool green color.

* Keep in mind it has no power supply cord. Use your old one if possible or buy one before purchase. *

It has various connectors such as:

1 x 20+4 Pin ATX Connector
1 x 4+4 Pin ATX 12V Connector
1 x 6 Pin PCI-E Graphics Connector
5 x SATA Connectors
4 x Molex Connectors
1 x Floppy Connector

For the price this is the best power supply you can buy for a system that doesn't demand too much wattage power.

I would recommend this product. It has connectors for various peripherals. It is 80 PLUS certified (which means: it promotes energy efficiency. It certifies products that have more than 80% energy efficiency at 20%, 50% and 100% of rated load, and a power factor of 0.9 or greater at 100% load. That is, PSUs that waste 20% or less electric energy as heat at the specified load levels, thus reducing electricity use and bills compared to less efficient PSUs.)

It also has a Active PFC up to 99%. PFC means "Power Factor Correction" which allows power distribution to operate at its maximum efficiency. There are two types of PFC, Active PFC and Passive PFC. The preferable type of PFC is Active Power Factor Correction (Active PFC) since it provides more efficient power frequency. Because Active PFC uses a circuit to correct power factor, Active PFC is able to generate a theoretical power factor of over 95%, hence this power supply can go up to 99%!
Read more ›
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Antec EarthWatts EA-380D Green 380 Watt 80 PLUS BRONZE Power Supply
This item: Antec EarthWatts EA-380D Green 380 Watt 80 PLUS BRONZE Power Supply
Price: $54.64
Ships from and sold by Amazon.com