X-Series 1250w '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-025-SS

EAN: 4711173871668

MPN: SS-1250XM2

Manufacturer: Seasonic

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Product information:

X-Series 1250w '80 Plus Gold' Modular Power Supply


- 80 Plus Gold Certification
- DC to DC Converter Design, provides superior dynamic response, greater stability and maximize 12VDC rail output.
- Seasonic patent pending modular cable back panel, with integrated VRM, reduces internal wiring and increases efficiency & quality.
- Super high efficiency for energy savings.
- Dual sided PCB layout for quality & performance
- High current gold plated terminals, reduces current transmission resistance for increased efficiency.
- Conductive solid polymer aluminum electrolytic capacitors
- Advanced ultra-low resistance, high temperature (105°C) electrolytic capacitors
- Improved load voltage regulation keeps the voltage fluctuations on the 12 V output within 0 % to 2 % with no negative tolerance.
- Multi-GPU technologies supported with 6P and 8P PCI-E connectors
- Active Power Factor Correction [99% PF] for reduced line noise and power distortion.
- Universal AC Input for plug and run anywhere around the world.
- >100,000 hours MTBF
- Dual Copper Bars conduct current more efficiently to reduce impedance and minimize voltage drop.
- Smart and Silent Fan Control [S3FC], Seasonic patent pending, with fan control selector switch to S2FC
- Hysteresis Fan Control optimizes how frequently the fan switches on and off during Fanless and Silent modes.
- Sanyo Denki San Ace 12cm double ball, ball bearing fan best noise and cooling performance available.
- Ultra ventilation [Honey Comb Structure] for increased airflow and reduced noise levels.
- Full-Modular cable connections
- Easy Swap peripheral connectors for easy plug and unplug connection.
- Scratch resistant powder coat paint (black)
- Over Power / Over Voltage / Under Voltage / Over Current / Over Temperature/ Short Circuit Protection.
- Energy Star, RoHS, WEEE, ErP Lot 6 & REACH compliant
- PFC Harmonics compliant, EN61000-3-2: 2000
- CE, FCC, C-tick


- Motherboard 24 Pin x 1 - CPU 8/4 Pin x 1 - CPU 8 Pin x 1 - PCI-E 8-6 Pin x 10 - Molex 4 Pin x 5 - SATA x 14 - Floppy x 1 - 5 Years Warranty

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Great but one minor niggle

I previously had the 850 version and I had to down vote one star for being supplied with a 2 pin power cable. This time I was relieved to see a proper UK plug, unfortunately the other end was circular so wouldn't fit the PSU pins. Why Seasonic cannot provide usable power cables I do not know. Still, reviews speak volumes for this PSU, I cannot go into the level of technical details they do but this is a highly highly rated PSU. Just a shame that for a premium product you don't get a compatible power lead.


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