Dell OptiPlex NX1 User Manual page 15

padlock ring
security cable slot
On the back of the OptiPlex NX1 computer are three audio connectors (see Figure
1-3) that provide access to the 16-bit audio controller integrated onto the computer's
system board. To use external speakers, connect the speaker cable to the middle
(line-out) audio connector.
microphone connector
line-out connector
line-in connector
Introduction 1-5