I did a comparison of the image creation speed on an internal slave drive as opposed to USB2 Maxtor OneTouch external drive. My desktop uses a 1.8 GHz Celeron processor. Creating an image on an internal slave HD took 12.68 min/6.736 GB or 1.88 min/GB (normal compression). My laptop uses a 2.4 GHz Celeron processor. Creating an image on a USB2 Maxtor OneTouch external HD took 25.82 min/4.909 GB or 5.26 min/GB (normal compression). In other words, image creation is 2.8 times faster on an internal drive as opposed to an external drive, even though the laptop has a processor speed 1.33 times that of the desktop. Would restoring an image show a similar difference?