Same here
I used once KC2 with 500GB SATA WD HDD; no problem and one day after KC2 connecting but disk not appear in OS. After this tried all of my SATA&IDE devices with Kama Connect and internal, devices is OK in internal connection but not working with Kama Connect. And i sent my very new Kama Connect 2 back to the dealer. Waiting response from them now...
EDIT: Replaced an everything OK for now.