The MFJ-1234OS is the same software you would find on our MFJ-1234SD but without the SD Card. This is a great option for customers that want the software and already have a SD card (16GB or larger), or live in an area that is difficult to ship to.
Disclaimer: Warning if you live in an area with low internet speeds then this download may be slow. If you live in an area where internet is limited then the MFJ-1234SD may be your best option.
Software Size: 4.1 GB