Indeed. But I'm trying to determine the exact origins of the drive mechanism used in my HyperDrive Mac, even if it perhaps wasn't the original drive mechanism. It this drive certainly was built well though, as evidenced by the fact it still works perfectly.
Also, if the drive mechanism used in my HyperDrive Mac is not the original that GCC shipped, then it is quite a coincidence that The Nixer's Hyperdrive Mac 512 uses the exact same drive mechanism as mine!