Yo he encontrado esta...no sé que tal será? Es una SDHC de clase 4 pero Genuina

Sandisk 8GB SDHC Memory Card (Black)

$21.33

    * Sandisk SDHC memory card.
    * Capacity: 8GB
    * High-speed and easy to use.
    * Compact and convenient to carry.
    * Nice gift for relatives and friends.
    * For memorizing music, video, electronic documents and other data.

http://www.focalprice.com/MF256B/Sandisk_8GB_SDHC_Memory_Card_Black.html

La acabo de pedir...a ver que pasa...espero que llegue!!!