Nevertheless, it's defective, regardless of the problem's origin. I have two of them, and, they both do not function as they should. I've tried them on both A2000s, an A3000, and my A4000. It's not just me that is having the issue with multiple IDE HDs and CDs not working on it. Several users over on A1K have tried in excess of 10 hard disks, only to have two of them work. Nothing works on mine other than the DOM it came with. It doesn't even detect the presence of the 5 or so HDs I've tried (all 20 year old drives that are known working on other IDE cards (FastATA 4000 MKVII, the A1K at-bus clone, the crappy IDE4Zorro card) on the Amiga with no issue).
Of course, due to the update not being released yet.