Hello!
I have the following hardware:
- MacBook Pro Mid 2015 with one 3.5mm audio port (mic, ground, right, left)
- Mic/Headphones splitter
- Plantronics headset with 2 3.5mm audio jacks (both stereo)
- 2 stereo 3.5mm audio jack cables
- PC with 5 3.5mm audio ports (each works independently...