You have 3,5" IDE adapter (40 pins), but A600 has 2,5" IDE connector (44 pins, power in 4 extra pins).
In theory you can use your adapter, if you find or make 44->40 pin IDE cable and take power elsewhere. Or if you get IDE splitter for Amiga which would give you 3,5" ports. But more pretty solution would be having 2,5" adapter and normal 44-pin 2,5" IDE cable.
