Acer TravelMate 2300 Series User Manual page 51

3 Press the slot eject button (1) to pop out the eject button; then
press it again to eject the card (2).
3-in-1 card reader
There is one 3-in-1 card reader found on the right side of the
computer. See "Right view" on page 8. The reader accepts Secure
Digital (SD), MultiMediaCard (MMC) and Memory Stick (MS) to
enhance usability. To insert the card, align and push the card into the
slot. To remove, simply press on the card that will eject automatically.
Note: The 3-in-1 card reader is only available on certain models.
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