A 2,5" disk might produce a little less heat, but it seems to be too much anyway. Doesn't it require a SCSI disk, though? 2.5" SCSI disks are unobtanium these days. And the Multia is such a cute little box - using it with external drives ruins the whole effect. I have a couple of UDBs/Multias too and way back when being able to run "all three" operating systems (Windows, Unix and VMS) on the same hardware was pretty amazing. Bob