TravelMate 4520/4220, Extensa 4420/4120 Service Guide
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...Chapter 1 3 t Kensington lock notch deters theft by verifying an individual's true identity. T Data security t Acer Bio-Protection solution provides network and data security by letting you secure the notebook to a class driver architecture for a light-weight and reliable safeguard against physical damage. Bluetooth, and WLAN functions T Ethernet and modem... (RJ-11) T Left panel t Kensington lock t USB 2.0 (1x) t 5-in-1 card reader slot T Right panel t PC Card slot (Type II) t USB 2.0 (2x) t S-video/TV-out t Ethernet (RJ-45) t VGA (external monitor) t DC-in Microsoft Windows Vista .
...Chapter 1 3 t Kensington lock notch deters theft by verifying an individual's true identity. T Data security t Acer Bio-Protection solution provides network and data security by letting you secure the notebook to a class driver architecture for a light-weight and reliable safeguard against physical damage. Bluetooth, and WLAN functions T Ethernet and modem... (RJ-11) T Left panel t Kensington lock t USB 2.0 (1x) t 5-in-1 card reader slot T Right panel t PC Card slot (Type II) t USB 2.0 (2x) t S-video/TV-out t Ethernet (RJ-45) t VGA (external monitor) t DC-in Microsoft Windows Vista .