We don’t recommend using the PC Connect cables for those units that have an SD card. Several reasons for that:
- For those units that have an SD card slot many will already have an SD card.
- The SD card method is cheaper and many stores carry SD cards where only a few carry the PC Connect cables.
- There are few things that can go wrong with the SD card method as there are fewer parts, connections and steps involved.
The one downside of using the SD card is that if push comes to shove; the PC Connect cables will more often allow you to use the bootstrap method to recover your unit than an SD card will.

Since the 727 has no SD card slot Yankee Doodler had no choice but to use this method to update his unit.