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Re Sanan..... the investment thesis is sound. We're working with our partners to qualify the first set of products which are our hundred 200 gig dual purpose engines. So these are basically a single engine.Service servicing either 100 gig or 200 gig depending on what the customer wants.Uhm, we've got. You know our first set of customers lined up for that. We're going through beta, so this quarter were basically going through our beta bills and then eventually qualification and production, so we're still going to be in production. And second half of this year, just like we we've mentioned.You know, or so. So when you move from qualification process in beta builds, two production that will produce product that is then ready to be integrated into other peoples transceivers. Is there another qualification of their product?Yeah, after they've integrated it, hence the end market demand poll for the product is, you know beyond that.And it depends on the level of engagement and the timelines of the engagement. So with some of the customers, they're already starting to do their module design and validation with our alpha samples that have been provided to them. So in that case there is some degree of concurrent engineering.Uhm, you know for the customers that are waiting for the product to be kind of beta or production ready prior to them even engaging, then there will be an additional cycle of them actually engineering the product and then going through qualification. So it depends on the customer. Some of the early customers that we have announced that are kind of jumping in.Up front, the Co engineer and good design will obviously be out the gates faster than others