http://cgi.ebay.com/Apple-Macintosh-512K-computer-mouse-drive-and-case_W0QQitemZ190334943506QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2c50d8c112&_trksid=p4999.c0.m14#ht_500wt_977

No where does it say HyperDrive, but it has a tell tale label. I compared it to pictures of other 512k hyperdrives and it seems like this is one too!

I am not the seller.

Please correct me if I am wrong.