I had an original 10MB Hyperdrive when they first came out.

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Your use of the word "had" implies you do not have the drive now. But if you do, I would love to seem some photos. I'm still trying to determine the true origins of my 20MB HyperDrive mechanism, so I would love to see the manufacturer specs presented on the label affixed to the 10MB version.

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Yes "had", sorry. Frankly so too many old computers and not enough space. The Hyperdrives were in a 128K->512K which was sold to finance the SE, which I do have but it's very yellow (even though has been under a black cover) That one had a processor upgrade, to 16MHz I think. Hard disk won't boot though