Canon MG6600 series Online Manual page 181

Insert the following types of memory cards into the lower card slot:
• SD Secure Digital memory card, SDHC memory card
• miniSD Card , miniSDHC Card
• microSD Card , microSDHC Card
Important
• Part of the memory card will protrude from the card slot, but do not force it into the slot any further.
This can damage the machine or the memory card.
• Make sure that the memory card is correctly oriented before inserting it into the card slot. If you
force the memory card into the card slot in the wrong orientation, the memory card or the machine
can be damaged.
• Do not insert more than one memory card at a time.
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