If you move large audio or video files to your Pocket PC or Smartphone, it's much easier (and faster) to write directly to a microSD card with a flash memory card reader than to transfer the files via ActiveSync or Windows Mobile Device Center.
SanDisk MobileMate SD Plus Reader
SanDisk's MobileMate SD Plus Card Reader is one of the smallest readers on the market and unique in its compatibility class (for this product: SD, SDHC, miniSD, miniSDHC, microSD, microSDHC, MultiMediaCard, and MMCmobile), ideal for memory-enabled mobile-phone users and photo-travel needs. The flash-memory cards can be plugged directly into the readers. No card adapters are required.
Transfer files from your computer to a microSD or microSDHC flash memory card with the SanDisk MobileMate Micro card reader. Connects to your PC via a USB 2.0 high speed connection. No adapters required; natively fits microSD cards.