Dell Precision M90 User Guide - Page 5

Left Side View 1 security cable slot 2 air vent 3 USB connectors (2) 4 optical drive 5 optical-drive-tray eject button 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. 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. 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 1 smart card slot 2 hard drive 3 ExpressCard slot 4 IEEE 1394 connector 5 5-in-1 media memory card reader 6 audio connectors (2) 7 air vent 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. NOTE: The ExpressCard slot does not support PC cards. IEEE 1394 connector - Connects devices supporting IEEE 1394 high-speed transfer rates, such as some digital video cameras.