COM port missing

[cooolor]

Hi there,
I'm trying to update firmware (dual extruder with black z motor, purchased 02/16) M2_Dual_Extruder_Marlin_Black_Z_Motor.zip. I don't see the "COM" port in the list - see attached screenshots. I have a 2016 MBP without USB ports - using an adapter (not sure if that's the problem). Any ideas why the port is missing? Or is it one of the listed? Thanks a lot!

1.5.5 Arduino version

https://www.dropbox.com/s/ayt28gm5mtmfbdn/01.png?dl=0
https://www.dropbox.com/s/5uz0k9wh4u9q1qx/02.png?dl=0
https://www.dropbox.com/s/arw6nv3ei536twg/03.png?dl=0

[insta]

You want one of the usbmodems in the list. Macs work differently

[cooolor]

Thanks insta,
I had to make it work last weekend so I used a laptop with windows and it worked without issues. I'll keep it in mind next time. Thanks again!