Dell XPS Adamo XPS Setup Instructions page 12

Audio
Type
Controller
Speaker
Microphone
Headphone
Storage
Internal
External
Ports and Connectors
USB
DisplayPort
NOTE: A DisplayPort to DVI adapter is shipped with the
computer.
12
Intel High Definition Audio 2.0
Realtek ALC269
one mono speaker
one digital microphone
one stereo 3.5-mm headphone connector
128-GB Solid State Drive
optional 250-GB/500-GB USB SATA hard drive
two 4-pin USB 2.0-compliant connectors
one 20-pin connector