Upgrade from PSUSB_28 or PSUSB_28x to the PSUSB_28xi:
if you have an older PSUSB_28 or 28x and would like to upgrade to the PSUSB_28xi we are offering this service. In order for this to happen due to the methodology the firmware is applied to the device you will need to send your current 28 or 28x device back to us for programming (future updates will not require this) Please use the "contact us" tab to send us a message for details.