Storage Expansion on TK1

Is it possible to add a mSATA SSD to the mPCIe slot provided on the Jetson?
Are there any particular specs/requirements that must be matched or will any consumer mSATA SSD work with this slot?
If we cannot plug in an SSD, what other hardware can we plug into this slot?

Thanks
Shehzan

Some examples are Wi-Fi, 4G, GPS, TV tuners, video capture, GigE ports, etc.

mSATA and mPCIe are confusing because they share the same connector but are not compatible. There are mPCIe SSDs but they’re probably legacy at this point and getting harder to find. As an example, netbooks used to use mPCIe SSDs. I doubt the performance is anywhere near as good as a new 2.5" SATA SSD.

I plan on putting an AzureWave mPCIe Wi-Fi module into the TK1 slot. :)