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Item#: N82E16817151088

SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

  • ATX12V V2.3/EPS 12V V2.91
  • 80 PLUS GOLD Certified
  • Sanyo Denki San Ace PWM Silent Fan
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BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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Learn more about the SeaSonic USA X650 Gold ((SS-650KM Active PFC F3))

Model

Brand
SeaSonic
Model
X650 Gold ((SS-650KM Active PFC F3))
Series
X Series

Spec

Type
ATX12V V2.3/EPS 12V V2.91
Maximum Power
650W
Fans
1 x Sanyo Denki San Ace PWM Silent Fan
PFC
Active
Main Connector
20+4Pin
+12V Rails
Single
PCI-Express Connector
4 x 6+2-Pin
SATA Power Connector
8
SLI
SLI Ready
Haswell Support
Certified
CrossFire
CrossFire Ready
Modular
Full Modular
Efficiency
> 87%
Energy-Efficient
80 PLUS GOLD Certified
Input Voltage
100 - 240 V
Input Frequency Range
50/60 Hz
Output
+3.3V@25A, +5V@25A, +12V@54A, -12V@1A, +5VSB@3.0A
Dimensions
6.3" x 5.9" x 3.4"

Features

Connectors
1 x Main connector (20+4Pin)
1 x 4 Pin ATX12V
2 x 8 Pin EPS12V
8 x Peripheral
8 x SATA
2 x Floppy
4 x PCI-E
Features
DC Connector Module with Integrated VRM [Voltage Regulator Module]

DC to DC Converter Design

Hybrid Silent Fan Control

Sanyo Denki San Ace PWM Silent Fan

Conductive Polymer Aluminum Solid Capacitors

Highly Reliable 105 degrees C Japanese Brand Capacitors

Tight Voltage Regulation [+/-3%]

Active Power Factor Correction [99% PF Typical]

Ample +12V Output

Dual Sided PCB Layout

Ultra Ventilation [Honeycomb Structure]

Full Modular Cabling Design

Multi-GPU Technologies Supported

All-in-One DC Cabling Design

Easy Swap Connector

Universal AC Input [Full Range]

Quick Info

Warranty

  • Limited Warranty period (parts): 7 years
  • Limited Warranty period (labor): 7 years


Customer Reviews of the SeaSonic USA X650 Gold ((SS-650KM Active PFC F3))

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Showing 630 of 630 reviews - Clear Filters

  • N/A
  • 8/16/2014 3:23:08 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsStarted failing after 2 years.

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Totally modular
Silent fan
Runs cool
Nice packaging, quality stuff.

Cons: Coil whine since day 1, very annoying. (Seems almost all Seasonic/Corsair PSUs do this)
Started failing and restarting my computer without warning after 2 years.
Costly for nothing since I bought it to be silent (has coil whine) and NOT fail. Ho well.

Manufacturer Response:

Hi Dominique, Sorry to read of your issue. Please note, for coil whine, it is often the combination of the MB and or VGA with the PSU and often times, enabling ERP/energy savings modes in the BIOS or disabling VSync in the VGA will resolve the coil whine issue. As for the re-start issue, please kindly visit www.seasonicusa.com and start a RMA and we will process it as soon as possible for you. If you have any quesitons or concerns, please contact us at: newegg@seasonicus.com Thank you.

Did you find this review helpful? Yes No

  • N/A
  • 8/8/2014 11:29:23 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsFail after three month usage

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Come with enough cables for extra hardware. It is very quite.

Cons: After I use it for about three month, the PSU starts to shutoff randomly without any warning. After shutoff, it will reboot itself, but sometimes it fails to reboot and then keep rebooting itself. I switched memory and monitored my CPU and Video card temperature, and they are fine. I finally switched back to my old 450W PSU. Everything is going smooth so far.

Manufacturer Response:

Hi Boyang,
Sorry for the issue with the power supply. As I understand, you have already contacted Sea Sonic USA for RMA support. I hope they will resolve your issues as soon as possible and if you have any questions, please contact us at newegg@seasonicus.com Thank you.

1 out of 1 people found this review helpful. Did you? Yes No

  • N/A
  • 8/5/2014 10:59:30 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsReliable

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: This power supply is one of the best. Look at the professional reviews online. It has very low ripple, and it able to maintain the full 650 watts at gold rated efficiency, even in very hot rooms. Its fully modular which makes it much easier to put together a system and properly rout cables around the case.

Many other companies use seasonic built power supplies and slap their name on them. They do this because Seasonic is known for being one of the best OEM's out there, with many power supply experts saying they are the number one company when it comes to reliability.

Cons: Platinum rated supplies are even better, but there is a significant price premium for those when they really only supply around 2-3 percent more efficiency in best case scenario.

Other Thoughts: Don't skimp on the power supply.

The most important thing in a system is the power supply. A bad one can fry ALL your components at once. Not only that, a well build power supply gives you system cleaner voltage that allows VRM components on motherboard and video card to last longer. It always worth it to spend the extra 50 dollars to get the well built supply.

Did you find this review helpful? Yes No

  • N/A
  • 7/28/2014 6:33:26 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsExcellent Product

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: I have had this power supply in a build that I did 2 years ago and it's still running well. This thing is definitely silent and stays cool, therefore the fan hardly runs and when it does you can barely tell. The modularity is awesome as well, with plenty of extra braided cables to boot. I am hoping to keep this thing into my next build and until it goes dead, as I don't feel any more power is needed for what I am going to do with it.

Cons: None that I have come across yet

Other Thoughts: I would recommend everyone check out some of the videos on Youtube about power supplies as you generally don't need as much power as you think. "JayzTwoCents" was getting only 350watts pulled from wall to tower with overclocked GPU, CPU, 12 fans and radiator. I'd recommend buying something with better efficiency in your range over just a ton of raw power.

Did you find this review helpful? Yes No

  • N/A
  • 7/25/2014 12:21:40 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsSolid PSU

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Fully modular, gold certified, quality product. Quiet fan. It has an extra "Hybrid mode" switch that only turns the fan on when needed instead of all of the time. Plenty of power for all but the hungriest computers.

Cons: Most of the cables don't give a satisfying "click" feel or sound when plugging them into the back of the PSU, so it's hard to tell if they are all the way in or not. The cables are also somewhat difficult to unplug from the motherboard if u need to. I wish they had more grip.

Other Thoughts: I bought two of these. One of them was perfect. The other one had a defective GPU port and/or cable that partially melted the cable inside of the port, but I replaced the cable with the extra cable included, and plugged it into an alternate GPU port, and it works great now.

Did you find this review helpful? Yes No

  • N/A
  • 7/20/2014 10:31:56 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsFailed after 1.5 years

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Quiet, design is nice, having all the cables unplugable helps keep wire clutter down, nice storage bag.

Cons: Loud pop when trying to turn it on (after no problems for 1.5 years). Small black square is loose in PSU. Not sure if pop created the piece or if the piece itself caused a short.

Sending it in for warranty repair. We'll see if they fix it...

Other Thoughts: Like the PSU but would expect more than 1.5 years life. I'm not sure if the warranty is 3 years or 5 years, but either way I should be covered.

Manufacturer Response:

Hi Daniel,
I am sorry for the issue with the power supply. Please contact Seasonic USA for warranty service. If you have any questions, please contact us at: newegg@seasonicus.com Thank you.

1 out of 1 people found this review helpful. Did you? Yes No

  • Elpidio
  • 7/18/2014 10:46:40 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat PSU

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Fully Modular PSU. Love not having a bunch of wires i Don't need. IT is that much more appreciated in an ITX case. Currently using a GTX 750 ti and it does not need PCIE power. Also love the Hybrid mode. Fans are not even spinning.

Cons: Not much her to look at. Move along.

Other Thoughts: Current system.
CPU - i5 4430
MB - Asrock zitxe
Mem - G-Skills 1866
SSD - PNY Pro 240
HD - 3tb WD Green
GPU - EVGA GTX 750 ti SC
PSU - Seasonic x650
Case - Lian-Li PC-Q28

Did you find this review helpful? Yes No

  • Magnus2019
  • 7/4/2014 8:31:09 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsDC-DC for the Win!

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: I love their Hybrid system, and having DC-DC conversion helps immensely with voltage stabilization.

Cons: N/A

Other Thoughts: The Hybrid fan is a great choice fanless when you want it fan when you need it.

Did you find this review helpful? Yes No

  • N/A
  • 7/3/2014 6:04:56 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsRecommended to most

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: It's a SeaSonic! Finally had to replace an 8 year old SeaSonic made (Corsair) PSU; was getting a little long in the tooth. When something works don't mess with it.

Cons: Cabling a little frustrating, peripheral/SATA power connectors are keyed to daisy chain up. If the PSU is mounted in the bottom of the case with fan up the connectors are keyed to move up the chain. If the PSU is mounted top of the case fan down the power connectors are keyed such that you have to start at the end of the cable, chain down then loop at the bottom back up to the PSU to connect. Fortunately the peripheral/SATA cables are long enough to do so as long as you don't have too many devices (had to move my HDD up one slot), things do get a bit crowded after all devices are connected with several cable looped back to the PSU. SeaSonic could correct this by making the peripheral/SATA cables two part with a connecter at each end of the device daisy. The extension cable to the PSU could be shortened allowing you to connect to the device daisy cable at the bottom or the top.

One more gripe; center the connector sockets on the PSU panel. The PSU receiver on my case is angle framed. When the PSU is installed the row closest to the PSU edge is parallel to the frame angle covering the connector row. Fortunately there is a .5" standoff from the front of the PSU to the angle frame. I had to aggressively bend the cable wires at the plug to prevent the wires chaffing on the angle. If I did not have the .5" standoff I would not be able to have installed this PSU. By centering the connectors on the PSU the fan switch would have to be moved; it should be on the front panel with the power switch anyway.

I wanted to take 1.5 eggs away, don't have that option. The above was not worth 2 eggs.

Other Thoughts: Not sure I get the satin travel bag for the PSU and the velcro pouch for the unused cables. I've tried to think of any instance where I might travel with my PSU; none come to mind. Save us some money SeaSonic. Put the cables in a ziplock bag and keep the satin bag. If I need a bag I have a drawer full of Crown Royal bags.

Manufacturer Response:

Hi Mark, Sorry you are not 100% satisfied with our product. Please note, depending on the system case, the PSU can be mounted either top, bottom or side of the case and we are not able to make 3x sets of cable to meet each individual situaiton so we try to make a set of cable which we think will be the most popular. As for the sockets on the PSU panel, we are limited on the location due to the internal PCB layout, safety approval and many other factors. Best would be center as that will cause least issues but we would if we could but we cannot. Sorry. As for the velco bag, the cost when purchased in volume is not very significant compared to the overall cost of the power supply and many like it and some do not, again, it is very difficult for us to make a product that pleases everyone, though we do try... We welcome your comments and suggestions and if you have futher information to add, please write to: newegg@seasonicus.com Thank You.

Did you find this review helpful? Yes No

  • N/A
  • 5/27/2014 5:46:09 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsSeasonic X650

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Took 3 tries to get it in a bitfenix prodigy, but it fits. Came packages very nicely.

Cons: -

Other Thoughts: The main reason I got this PSU is that it was on tier 1 on the eggxpert list.

1 out of 1 people found this review helpful. Did you? Yes No

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