I've got the dock on my desk with a 2.5" 40GB HDD connected to it via USB, I leave the UX on there at night downloading torrents etc, and use the 40GB as the main storage.I noticed the FeliCa thingy is about the same same as the enclosure, so decided to swap. All I did was unscrew the bottom of the sliding bit, then the two screws that hold the slip in the middle and it all slides off. The taking the HDD out of the enclosure and leaving the PCB attached tested the fit. The rails that the FeliCa thing slides on are a perfect size to clamp my Hitachi drive.





Although the pictures seem lacking, this is much easier then it looks. Open up the dock to see what I mean. You will need a screwdriver to force the panel out, it has two tabs holding it in.