08-11-2017 09:50 AM
Welcome to Lenovo Community! And happy to have you here.
Well to start off EM7455 comes under CAT-6 category whereas EM7355 CAT-3 from which EM7455 can have a download speed of 300Mbps. And also chances are there for voice support in future firmware upgrade in EM7455.
I hope the above information helped you.
Please feel free to post in Lenovo Community Forums if you have any further queries!
Tap that Kudos button if I helped.
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!
08-11-2017 10:00 AM
Do it well, worse becomes itself