February 26, 2024


G4 Cube Forever

Review of the Postworx Speedball for PowerBook and iBook


Postworx recently sent us two sets of SpeedBalls for review. The first one is white and matches perfectly the iBook and the second one just has the same color as our TiBook.

Speedball is a hardware addition primarily targeted at laptop computers. The product consists of two half-spheres with adhesive and removable mounting blocks. By attaching the two spheres to the far bottom corners of a laptop, the Speedball elevates the computer and offers improved cooling.


According to Postworx, “Speedball is a metallic coated product for use under notebook to increase notebook mobility on desktop. Its high performance coating is non-scratch and slides on any desktop with little or no resistance”.

We found the Speedballs very easy to install and use, and our PowerBook G4 runs cooler than before. Each half ball weights 15 g and two pieces are needed under the back end corners of the notebook. They can either be posted or stuck under the notebook and removed and used again another time. The power slide capability of the Speedballs allows you to move your notebook easily on your desk. Notebook users can truly take the most comfortable sitting position whether leaning back, stretch forward, or just sitting upright. User can also share their screen information easily by twirling the notebook towards another person. The Speedballs also give you an ergonomic keyboard angle. And last but not least (especially if you own a PowerBook G4!), the increase in height at the back of the notebook allows a better air circulation under the notebook and helps lowering the temperature. Postworx claims that its operating temperature can experiences a drop by as much as 15 degree Celsius or 25 degree Fahrenheit.We do believe it is true.

Bottom line : this little piece of hardware is worth its price. You’ll never regret buying it!

Pros : inexpensive, easy to install, remove and use, matches your PowerBook or iBook color.

Cons : What does that word mean? 🙂

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