Data through Serial Transfer Speed Benchmark - November 19th 2010
Serial to Serial Serial to USB
Number of packets exchanged 59 29
Total number of bytes transferred 7,727,584 3,798,304
Test Duration 0:05:35 0:05:32
Average raw speed in bytes per second 23,081 11,420
I completed this test using two different USB to serial converters as well as with a few different PC's and received similar results.
SABRENT SBT-USC1K USB to Serial (9-pin) DB-9 RS-232 Adapter Cable
TRENDnet TU-S9 USB to Serial Converter
Will there be a bottle neck when using a USB to Serial Cable and are there any tests that would give a better result of transfer speeds?