Speed (Data Rate)
The average speed of an RS-232 serial port is 0.15 Mbit/s while the very first version of USB, USB 1.0 introduced in 1996, allows 1.5 Mbit/s data rates. This first USB specification is approximately 10 times faster than RS-232.

Speed (Data Rate)
The average speed of an RS-232 serial port is 0.15 Mbit/s while the very first version of USB, USB 1.0 introduced in 1996, allows 1.5 Mbit/s data rates. This first USB specification is approximately 10 times faster than RS-232.

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