Most new laptops only have USB connection for external devices. The Bendix King programming cables use RS-232 9 pin DB9, so you will need an USB to Serial adapter to program your radios.
The 6ft USB 2.0 to serial adapter that we offer comes with the drivers needed for installation on your PCon a CD and will work on Windows XP, Windows Vista, Windows 7, Windows 8 and Mac OS 8.6 or above.
If you are using the legacy LAA-0725 programming cables, these came with a RS-232 25 pin serial connector. You will also need a RS232 to DB9 Adapter adapter for the original LAA-0725 Bendix King programming cable.