I do know something about IT and can confirm that satellite internet connections are available with downlink speeds of 400 Mb/sec.
hmmm.... everyone seems to "know something about IT" these days.
Stuff like BGAN only does around 400
kb/s. Even modern platforms such as "SPACEWAY" only get up to 30Mbps.
Believe me, it's going to be a looooong time before you see 400Mbps coming from a satellite !
Units .... units...... always verify your units !