Just bought a Mapower TB32 enclosure and put 2 SATAII HDDs in it. I've set the unit to JBOD (non-spanning - ie. 2 individual drives should show up) and connected the unit to my MB via the USB2 cable. The unit isn't correctly detected by OSX (10.5.2) and only 1 of 2 drives is "seen" (shows up in Disc Utility but cannot be formatted / erased / partitioned) Can't seem to figure out what is going wrong. Unit works fine when set to SPAN/BIG mode. Could it be because I've used a USB2 cable, but should instead use the eSATA coming out of the unit, and then attaching a PM-aware eSATA <-> USB converter to connect it to my MB? Does a pure USB2<->USB2 connection allow for multiple drives? Any one with any other ideas/suggestions? Much appreciated thanks!