Lenovo ThinkCentre M80t Gen 3 User Manual page 8

Headset connector
The headset connector is compatible with:
• Headphones or earphones with a 3.5mm (0.14 inch), TRS (3-pole) plug
• Headsets with a 3.5mm (0.14 inch), CTIA-compliant TRRS (4-pole) plug
Note: This headset connector does not support standalone external microphones with a TRS (3-pole) plug
or headsets with an OMTP-compliant TRRS (4-pole) plug.
Related topics
• "USB specifications" on page 11.
• "Use the optical drive (for selected models)" on page 16.
• "Use a media card (for selected models)" on page 16.
• "Lenovo diagnostic tools" on page 45.
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M70t Gen 3 / M80t Gen 3 User Guide