Lenovo A740 All In One - Manual (Page 9)

4
User Guide
Rear view of the computer
1 2 3 4 5 6
Security cable slot
Power connector
Ethernet connector
TV tuner connector (selected models only)
Combo audio jack *
USB 3.0 connector
* Combo audio jack: Used to connect headsets.
Notes:
• The combo audio jack does not support conventional microphones.
• Different industry standards may lead to the recording function not
being supported if third-party headphones or headsets are connected.