Buy from Amazon : http://www.amazon.com/gp/product/B005PAINXQ?tag=wayofcats-20
ASUS External USB Adapter for Transformer Pad Series Tablets
Made for ASUS Transformer-Series Android Tablets
Works with TF101 Series TF201 Series TF300 Series and TF700 Series
Adds USB 20 Port
No setup needed Instant plug and play
