ravikumar17jan :
400 Gb/s= 50 GB/s for home user?
Nobody is saying that.
Given how long it's taking for 10 gigabit to become mainstream for LAN applications, I think we can say that 400 gigabit
Internet is multiple decades away, for most of us.
...maybe never. I can't even see a reason why a home user would need this kind of bandwidth. You really have to get into the realm of sci fi.
Now, for businesses, if they want to move all their fileservers and databases into the cloud and have their employees doing HD video conferencing with others around the world, then I could see why a building like Google HQ might need hundreds of Gb/sec of bandwidth.
Also, financial businesses might want excess bandwidth as a way of reducing latency. Probably the links connecting different stock & commodity exchanges are many Gb/sec.
BTW, Intel is integrating 100 Gb/sec OmniPath into some of its new datacenter-oriented CPUs. They've already announced that the next gen will jump to 200 Gb/sec. So, we'd be halfway there, in the near future. But this kinda misses the point, as the purpose of these connections isn't to link two computers, but rather to connect to the uplink port of a switch aggregating a building (or more) full of computers.