Sony VGN-UX490N - Manual (Page 74)

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Using Peripheral Devices
Connecting the Display/LAN Adapter
Connect the supplied display/LAN adapter (1) to the I/O connector (2) on the bottom of your computer to expand connectivity
to the computer.
The display/LAN adapter has the following ports:
A
AV Out jack (page 81)
B Monitor (VGA) port (page 79)
C Network (Ethernet) port (100BASE-TX / 10BASE-T) (page 93)