Final Thoughts and Conclusions
Seasonic has certainly raised the bar for others to follow. The new X Series incorporates several significant advances in PC power supply design that result in excellent performance, high efficiency and the ability to operate in silent-fanless mode at lower power levels. Moving the +3.3V and +5V VRMs to the modular DC connector board was a very smart move and I’m sure has many others wondering “why didn’t we think of that”? Add to that a wealth of all modular cables, green design innovations and a 5-year warranty and you have one of the best PC power supply units we have tested to date. Highly recommended!The MSRP for the two X Series power supplies are:
• X-650 $169.99 USD
• X-750 $199.99 USD

Strengths:
• 750W continuous DC output (up to 50°)
• Excellent efficiency across a broad range of loads
• Excellent voltage regulation
• Very low AC ripple even at 100% load
• Silent, fanless operation at lower power levels
• Quiet operation at mid to upper power levels
• Single +12V output can deliver up to 62A/744W
• Four PCI-E connectors (6/8-pin) and two 8-pin EPS12V connectors
• Active PFC with universal AC input
• Sleeved cables with gold-plated connectors
• Green Innovations (long life cycle, high quality components, high efficiency, and value)
• 5-Year warranty
Weaknesses:
• None noted

Seasonic X Series PSUs
I would like to thank our friends at Seasonic for sending us the X Series 750W PSU to review. Be sure to use our price checking engine to find the best price on any of Seasonic’s great products or anything else you may want to buy!
And if you have any questions or comments about the article, or would like to see what others have to say about the Seasonic X Series 750W PSU, just click into our Case, Cooling and Power Supply forum to join in the discussion!