I assume that when they reported the project completed that they filled that order for early development  protypes? Then on to the next stage of development with that customer. Which I think was associated with 400g and above.

As Rainer quoted:

“We engaged with one of the leading companies in our industry to prove out the technology over a period of about 14 months. They paid us $2.5 million to prove to them that our technology worked.” (Tom Mika in today’s LD Micro conference presentation)