Sony PCG-F640 VAIO User Guide (primary manual) User Manual page 49

PC card slot protector
3 Insert the PC card into the PC card slot, front label facing up. Gently push
the card into the slot until the card is fixed into the connector.
4 The release button extends. Fold the release button back down into the
notebook.
Inserting a PC card
Insert with the
arrow facing forward
PC card
Do not force a PC card into the slot as this may damage the connector pins.
Do not carry your computer while touching the head of a PC card (such as a
wireless LAN card), pressure or shock may damage the connector pins.
Using PC Cards
49