SpeedPort has all the benefits of O3 Technology (below)

The difference is squared off holes (SpeedPorts) and other subtle design improvements.
SpeedPort works, the racquets play better than equivalent O3 models.

The bigger square holes are even more aerodynamic for faster, more controlled swing

The specially designed square holes are even more stiffer for an even
control, stability, and solid feel

SpeedPort works!

What O3 technology does for you:

• lets strings move more freely giving a larger sweet spot.
  
• the O-holes stiffen the head.  This gives more shot accuracy and great touch and control.
  
• the O-holes make the racquet more aerodynamic for greater racquet head speed.  This makes all O3 racquets very fast moving which is great for net play and also gives more power and spin with no more effort.
  
• Used by over 30 tour players!

Prince O3 technology works.  Over the years we have seen many racquet companies come out with "new revolutionary technology" only to see them not sell, not work, and disappear.  Prince O3 technology has been raved about by many people.  In our shop there is a very high demo-to-buy ratio - which shows that in comparison to other current racquets; O3 technology works.  This is true for every racquet in the O3 line, not just one or two frames.

When you combine O3 technology with the overall quality and experience of Prince, you have an unbeatable combination.  We are happy to be able to offer you the O3 line of racquets.