Review Index:
Feedback

Seasonic FOCUS Plus Platinum 550W PSU Review

Author: Lee Garbutt
Manufacturer: Seasonic

Specifications and Packaging

The Seasonic FOCUS Plus 550W Platinum power supply is rated for a combined, continuous output power of up to 550 watts at 50°C operating temperature. The PSU incorporates a single +12V rail that can deliver up to 45A (540W) on the +12V output.  The PSU includes universal AC line input (automatically adjusts to the AC line voltage between 100 and 240 VAC) and active PFC, which makes the unit more environmentally friendly to the local power grid.  

View Full Size

Specifications (from the Seasonic website):

View Full Size

View Full Size

View Full Size

Packaging and Parts

The Seasonic FOCUS Plus 550W Platinum power supply was shipped to us straight from Newegg and arrived packed inside a standard retail box showcasing the unit’s features and specifications.  

View Full Size

View Full Size

View Full Size

View Full Size

The power supply is protected by thick foam inserts and enclosed in a black fabric sleeve.

View Full Size

In addition to the power supply, the box contains a power cord, mounting screws, User Manual, bag of modular cables, wire ties, cable ties and a case badge label.

View Full Size

The FOCUS Plus 550W Platinum power supply comes with a standard assortment of six modular cables and one FDD adapter. (See table above for connector count and cable lengths.)


September 13, 2017 | 02:03 PM - Posted by homerdog

The S12II 520W is $52 including shipping on Newegg right now. The 430W is $47. The 550W S12G is $72 which is about what I would pay for this new model. There isn't a very large market for $100 550W power supplies.

September 13, 2017 | 02:21 PM - Posted by Power (not verified)

Computers are cheap these days. I feel it is well worth to pay extra for more refined tech.

Post new comment

The content of this field is kept private and will not be shown publicly.
  • Lines and paragraphs break automatically.
  • Allowed HTML tags: <a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd> <blockquote><p><br>
  • Web page addresses and e-mail addresses turn into links automatically.

More information about formatting options

By submitting this form, you accept the Mollom privacy policy.