Memory Card Reader - Asus G750JH E-Manual

Manual eject hole
The manual eject hole is used to eject the drive tray in case the
electronic eject button does not work.
WARNING! Use the manual eject hole only when the electronic
eject button does not work.
NOTE: For more details, refer to the Using the optical drive
section in this manual.

Memory card reader

This Notebook PC has a single built-in memory card reader slot
that supports MMC and SD card formats.
Notebook PC E-Manual