Sandisk 32GB Micro SDHC Class 4 TF Memory Card for Motorola XOOM Wi-Fi Rival with Everything But Stromboli Memory Card Reader - Bulk Packed
This 32GB Class 4 MicroSDHC Memory card has a guaranteed to maintain read write speed of at least 4mb/s, twice as fast as a class 2 card.  Comes with bonus MicroSDHC to USB Memory card reader for transferring all of your file from the card to your computer.