Charging cable needed for Asus Transformer Prime TF-201

[grtday]

Any ideas where to buy the male USB to seemingly proprietary charging plug on the Asus Transformer Prime TF-201.
I always like to have a spare or two.
Thanks to all in advance!
As always, please have a Great Day!

 

[Brian1]

Searching google found some places. From the looks the TF-101 and TF-201 use the same plug. If you find a good deal on one post back.

Brian