Dell Latitude XT PP12S User Manual page 215

Ports and Connectors
Network connector
USB
Powered USB
Video
DVI connector
Serial
Audio
IEEE 1394a
Docking
RJ-45 port for 10/100/1000 Mbits/second
Ethernet
three 4-pin USB-2.0 compliant connectors
one 9-pin USB-2.0 compliant connector
15-pin VGA connector
24-hole connector
9-pin connector; 16550C-compatible UART
with 16-byte buffer
headphone/speaker (line-out) mini
connector
4-pin serial connector
100-pin connector
Media Base (Optional)
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