The old model of Reader D-3-USB, which was produced until the end of 2013. Serial number starts with 263xxxxxxxxx.
The communication speed and negation of the read card number is set with the manual card programming.
PDF Manual
The new model of Reader D-3-USB, which is produced from 2014. Serial number starts with 2014xxxxxxxxx.
The negation setting (turning) of the read card number is done with the Codeks Device Manager software.
PDF Manual