What are the differences between the previous generation securityProbe and the new 5th generation securityProbe 5E?

The new securityProbe 5E has all the functionality of the previous generation secuurityProbe, but is faster and expandable. This is what the 4 RJ-45 expansion ports on the front of the unit are for. The new SEC 5E is now faster with a 520 MHz CPU and has more memory at 128MB. It also has an on board SD card slot that comes with standard with a 2GB SD card. The new unit now has two USB ports in place of the serial port. You can use a serial to USB converter and will still be able to use the same USB and serial modems. You can use any modem that worked on the previous generation securityProbe.