Очень понравилось про то, к чему могут привести высокие скорости:
Sending serial data to timesharing minicomputers at sustained high
speeds has been known to cause lockups, system halts, kernel panics,
and occasional antisocial behaviour. When experimenting with high
speed input to a system, consider rebooting the system if the file
transfers are not successful, especially if the personality of the
system appears altered.