X-Series 750w '80 Plus Gold' Modular Power Supply

  • The very first full modular multi-output ATX
  • high-wattage power supply that has ever obtained the 80PLUS® Gold certification is introduced by Seasonic.
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Stock Code: CA-026-SS

EAN: 4711173870739

MPN: SS-750KM3 F3

Manufacturer: Seasonic

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Product information:

X-Series 750w '80 Plus Gold' Modular Power Supply

The very first full modular multi-output ATX, high-wattage power supply that has ever obtained the 80PLUS® Gold certification is introduced by Seasonic, this coveted power supply is named “X”.
Featuring a patent pending design of “DC Connector Module with Integrated VRM”, the X Series is set to achieve both near-perfect DC to DC conversion and fully modularized design without compromising efficiency. After a long wait, finally there is a product that delivers the complete package, ultra-high efficiency, greatly improved dynamic response, and customizable cable arrangement that is tailored to meet any individual’s needs.
The X Series adopts a clever “Hybrid Silent Fan Control” design, which offers three distinct operation modes, fanless mode, silent mode, and cooling mode. The X automatically adjusts fan mode and speed according to the ambient temperature level. This brand new design not only optimizes heat dissipation, but also prolongs lifespan of the system by reducing unnecessary fan rotation. To make the X Series even more robust and exciting, Seasonic offers Sanyo Denki San Ace Silent Fan on X, the best fan there is in the industry.

- 80PLUS® Gold Certified Super High Efficiency
- Full Modular Cabling Design
- Patented DC Connector Module with Integrated VRM [Voltage Regulator Module]
- DC to DC Converter Design
- Seasonic Hybrid Silent Fan Control
- Sanyo Denki San Ace Silent Fan
- Conductive Polymer Aluminum Solid Capacitors
- Highly Reliable Japanese Brand Capacitors
- Tight Voltage Regulation [±3%]
- Active Power Factor Correction [99% PF Typical]
- High +12V Output
- High Current Gold Plated Terminals
- Dual Sided PCB Layout
- Ultra Ventilation [Honeycomb Structure]
- Multi-GPU Technologies Supported
- All-in-One DC Cabling Design
- Easy Swap Connector
- Universal AC Input [Full Range]


- Motherboard 24 Pin x 1
- CPU 8/4 Pin x 1
- CPU 8 Pin x 1
- PCI-E 8-6 Pin x 5
- Molex 4 Pin x 5
- SATA x 10
- Floppy x 1
- 7 Years Warranty

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Customer review

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Star Rating

Average customer rating

(from 3 customer reviews)
All Time (3)

Highly Recommended PSU

I have this PSU for 5yrs powered my PC i7-6700k 16gb ram 2400mhz / gtx 970 after 3yrs i upgraded my pc to i7 8700k / 16gb ram 3200mhz / gtx 1080 and i used the same PSU it works perfectly fine no issue or watsoever.. one of the best psu ive ever use better than my corsair 750w rm750x that thing is good but cant compare to the performance of this PSU kuddos to Seasonic..

LockDown20 2018-11-24

Great product

This power supply looks amazing, and does the job nicely. It comes with loads of wires and and even an impressive bag to store them in!

There are a few slight niggles that stop it short of a full five stars:

Both the included Sata power cables have entirely right angled connectors. I need a straight end for my flat mounted ssd. It would be nice at this price to get a straight extension or have one of the sets end in a straight rather than right angled connector.

It is very quiet, but there is a slight buzz at all times (even the pc is off - turning the PSU off/removing the power cable finally removes the buzz). It's not bad and I am hyper sensitive to such noises so probably wouldn't bother most.

The instruction book is pretty useless. There's a fan switch and I had to look up online because the instructions just tell you what it switches between, not which setting is which!
- From the manual: In addition, there is a switch provided to allow for manual selection between the Seasonic S2FC (fan control without Fanless Mode) and the S3FC (fan control including Fanless Mode).
For anyone else wondering "Normal" is S2FC (without fanless) and "Hybrid" is S3FC (with fanless).


Best PSU I have owned

Replaced an older Corsair HX650 with this version of the SX-series 750W Seasonic. Best PSU I have used in all respects. Absolute quality, absolutely quiet (no coil whine / buzzing noises). I like the flat style of cables and it is fully modular which helps in keeping the cable runs tidy and to a minimum. Cannot recommend it enough, why buy a badge engineered Seasonic when you can get the real deal.


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