SeaSonic ATX12VEPS12V SLI Ready CrossFire Ready Power Supply Review

SeaSonic ATX12VEPS12V SLI Ready CrossFire Ready Power Supply Review

When you want to play high end games on your computer and not be disturbed by the constant sound of a power supply, you need to trust the experts in the industry.

Anyone who has knowledge about computer hardware is familiar with SeaSonic Electronics, a Taiwan based power supply and computer PSU manufacturer. SeaSonic was initially limited to trading hardware for different companies, but in the 1980s they started making power supplies for computers.

Today, they deliver some of the best quality power supplies to meet the requirements of modern and avid gamers. Today we will review SeaSonic ATX12VEPS12V SLI Ready CrossFire Ready Power Supply SSR-650RM, one of their top rated PSUs. Does this model meet the high expectations we have from a brand of this caliber? Let’s delve into technical details and find out more.

Our first impression about the SeaSonic SSR-650RM is that it is specially designed for avid gamers and DIY professionals. The 80 PLUS Gold Certification, along with SeaSonic’s green slogan outlines the company’s dedication and commitment to creating eco-friendly power supplies for the market.

The DC to DC converter design holds promise of a superior and dynamic response. It provides great levels of system stability and optimizes the 12 VDC rail output.

We also like the tight voltage regulation ±3% offered by the power supply in review. This improves load regulation and minimizes the risk of voltage variations to deliver a smooth and stable performance.

When you are enjoying a high-end game, you definitely do not want to be disturbed by the constant buzzing sound of the fan. SeaSonic SSR-650RM cuts back on unwanted sound by striking a balance between noise and cooling so you can fully concentrate on your game.

The PSU is made from highly reliable 105 degree centigrade aluminum electrolyte capacitors sourced from Japan. This makes the product more durable and extends its life. Furthermore, the Japan or Taiwan sourced conductive polymer solid capacitors guarantees stable operation even under extreme conditions.

The SeaSonic SSR-650RM comes with a 5-year manufacturer warranty period which keeps customers in a safe bracket. It also comes with a 30-day money back guarantee so if you are not satisfied with the product or you get a defective piece, you can return it within 30 days and get a full refund.

Features of SeaSonic ATX12VEPS12V SLI Ready CrossFire Ready Power Supply

  • Measures 3 x 3.4 x 5.9 inches
  • Weighs 6.2 pounds
  • Intel ATX 12 V
  • 650W maximum power
  • Fluid Dynamic Bearing Fan (Seasonic S2FC)
  • 20+4-Pin main connector
  • Semi-Modular design
  • DC to DC converter design
  • Ultra ventilation
  • Detachable cables
  • Universal AC input
  • Tight voltage regulation


  • The PSU is compatible with new Intel Haswell processors
  • It runs efficiently without wasting any power
  • The efficiency level is 80 PLUS Gold Certified
  • The 650 Watt capability works fine for high-end desktop needs (PhotoShop, desktop publishing, Web creation, video editing)
  • It offers better voltage regulation than competitor products in the same range
  • It is made of high quality components that make the PSU more durable and reliable
  • It comes with lots of modular cables that work fine for mid or full tower cases
  • The smart cable design cuts the clutter inside the chassis
  • Intelligent fan control system allows a quiet operation


  • It is not completely modular and you will need to spend 50% more to get that feature
  • It offers only a 5-year warranty which is less than the 7-year warranties offered by competitors
  • The SATA plugs placed at the back may be hard to locate


The SeaSonic SSR-650RM does its job pretty well and we find it really suitable for gaming enthusiasts who don’t want a noisy fan to distract them. The overall capacity of this PSU is decent and it comes with some really good features which makes it good value for money.

The solid construction and high quality components ensure that your product will last for long. Even if there’s a problem, the manufacturer’s warranty covers it for five years. If you are looking to buy a high quality and reliable PSU without breaking the bank then this is a good option.

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