Dell Precision M90 - Manual (Page 5)

Left Side View
security cable slot — Lets you attach a commercially available antitheft device to the computer. For more information, see Security Cable Lock .
air vent — The computer uses fan(s) to create airflow through the vent(s), which prevents the computer from overheating.
USB connectors — Connect USB devices, such as a mouse, keyboard, or printer. You can also connect the optional floppy drive directly to a USB connector
using the optional floppy-drive cable.
optical drive — You can install devices such as a DVD drive or other optical drive in the optical drive bay. For more information, see Optical Drive .
optical-drive-tray eject button — Press this button to eject a CD or DVD from the optical drive. This button only works when the computer is turned on.
Right Side View
smart card slot — Supports one smart card. See Smart Cards .
hard drive — Stores software and data.
ExpressCard slot — Supports one ExpressCard, such as a modem or network adapter. The computer ships with a plastic blank installed in the slot. For more
information, see Using Cards .
IEEE 1394 connector — Connects devices supporting IEEE 1394 high-speed transfer rates, such as some digital video cameras.
1 security cable slot 3 USB connectors (2) 5 optical-drive-tray eject button
2 air vent 4 optical drive
CAUTION: Do not block, push objects into, or allow dust to accumulate in the air vents. Do not store your computer in a low-airflow environment,
such as a closed briefcase, while it is running. Restricting the airflow can damage the computer or cause a fire.
1 smart card slot 4 IEEE 1394 connector 7 air vent
2 hard drive 5 5-in-1 media memory card reader
3 ExpressCard slot 6 audio connectors (2)
NOTE: The ExpressCard slot does not support PC cards.