I'm still not seeing the alleged "connection" to Apple's HD-20, here. This is an external hard drive cased in a box that fits under the Mac and the name contains "HD" in caps, but other than that, well, no? (It's clearly a SCSI hard drive, not a weird IWM monstrosity, and it is of course a third-party rather than an Apple product. And I *seriously* doubt it uses the same proprietary drive mechanism as the Apple HD-20. Have you looked inside it yet?)