GE E840S - Manual (Page 24)

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Inserting an optional SD/SDHC card
1. Open the battery compartment. 2. Insert an optional SD/SDHC card into
the memory card slot as shown.
Optional SD/SDHC cards are not included.
The use of 64MB to 4GB memory cards from
recognized manufacturers such as SanDisk,
Panasonic and Toshiba is recommended for
reliable data storage.