The FreeAgent series (i.e. XTreme, Go, Desk, Theater) has long been Seagate’s cash cow. So when the manufacturer rolls out new, bigger drive, the FreeAgent will be the first to get it. Seagate’s own website provides a teaser on what appears to be the largest FreeAgent Go ever, equipping with a 640GB 2.5″ drive. Before this, 500GB is the max. capacity offered by anyone in the laptop-friendly HDD form factor. So, this product page sheds light on what is to come.

As a consumer storage line-up, the FreeAgent Go comes in 250GB, 320GB and 500GB as well as the unannounced 640GB. While all the other capacities are available in at least 5 colors, the 640GB will only get two (titanium silver and tuxedo black) for now. In-house developed backup software is for Windows only and oddly works with Seagate drives only. And a 5-year warranty is about as good as it gets for a portable USB drive.