If you have a Time Machine that does not connect to Bluetooth, and you would like to upgrade to one which DOES connect to Bluetooth, this is what you need.
We tried hard to create a software update which would add Bluetooth capability to the older machines, but we just could not figure out how to make it work!!
All features other than Bluetooth work the same on the old Time Machines as the new ones. The only reason to order this SD card is to connect your Time Machine to Bluetooth.
Note: You can download the image here and flash it to your own SD card if you would prefer. Or we can send you one already flashed.