I have a TF700T with the keyboard dock. I bought the 32 GB on board model, and I also have a 32 GB micro SD card sitting in the side of the tablet. I see an SD card slot on the keyboard, which I am not currently using. As I have recently learned how to trans-code my DVDs and load them on the tablet, I now want to expand my storage capacity. I was thinking about adding a 64 GB SD card, and would likely being playing videos, perhaps HD, off it. Here is the model I was looking at. Amazon.com: SanDisk SDSDRH-064G-A11 64GB ULTRA SDXC Card: Electronics Are any of you using the SD card slot on the keyboard in addition to the Micro SD? Any gotchas I should be looking out for ? Many thanks indeed.