Hoya sp. SR-2009-003 and Hoya sp. EPC-966 are the two accession numbers for this plant.  It also seems to be available in a yellow corona and red corona clone.  I have the red corona.

This is a great plant with the most photogenic of flowers but is not a Hoya for beginners.  It seems very demanding and the roots rot easily so I can’t really recommend it except for those up for a challenge.