JMicron should be a diff path no? nothing to do with other ports. I still have 2 unknown devices which are prob the JMicron.
In Leo they were listed properly but I used a custom JMicron kext.

---

 Snow Leopard 10.6.7  Gigabyte GA-P35-DS3P  Intel Q6600 @ 3Ghz  Corsair CM2X2048-6400DHX  Gigabyte HD5770 Silent Cell  Samsung SyncMaster 2494SW  ALC889a  Creative T5400 5.1  Maxtor 380215AS  Pioneer DVR-215D  Presonus Inspire 1394  KRK Rokit 5  Wacom Bamboo One 
 SL USB Guide => http://www.infinitemac.com/f57/guide...k-drive-t3705/ 