I was able to find this, which appears to be the correct cable:
https://smile.amazon.com/gp/product/B001CSIPA6/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
Hopefully that helps you as well.
It would be nice if Globalscale would sell some kind of hard drive kit that included the power and data cables, as well as some kind of holder for the drive…maybe even some kind of case.
