Boy I'm confused. My apologies for causing a distraction. I'm pretty sure we need that 400G TX in order to complete the optical engine. Suresh said they may be going directly to the 800G RX/TX but it can't be done without the 400G TX first. 

I recall a previous NR where transceiver was mentioned on a 400G I think. I assumed it meant the 400G TX was complete because it said 400 transceiver. This is not the case.

Either way. What I meant was Suresh said if the OFC was towards the end of March they could have possibly demonstrated a 400G TX. So we are close in regards to its completion.