In October, we had spoken to you about the disappointment of a reader of XLR8Yourmac after buying an external Western Digital hard drive, with the thought of swapping it with the internal disk in his machine.
The USB interface was integrated into the electronics of the disk, and there was no SATA connector.
Another reader of this site has raised a new problem of a similar type. He bought a 2,5" External Seagate and thought that he could install it in his portable. It had a SATA interface, however there was another problem.
The disk does not have a standard size, as the photograph shows: 9,5 mm on the right and the 12,5 mm on its left. Thus, this disk is at least 15 mm, which makes it too large even for recent Macbook Pro. The market of external disks is now so developed that the manufacturers can allow themselves to manufacture specific products. A disk directly equipped with an interface USB allows the saving of some dollars. Other changes, such as in this case, allows an increase of the capacity by putting more platters, which is easier than increasing the density.
