# How Can I See Com Port for USB Device on Macbook Pro **URL:** \ **Category:** Networking, Protocols, and Devices\ **Created:** [July 19, 2015, 2:46pm UTC](https://forum.arduino.cc/t/how-can-i-see-com-port-for-usb-device-on-macbook-pro/324714 "2015-07-19T14:46:20Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![encryptor](https://avatars.discourse-cdn.com/v4/letter/e/ecd19e/32.png) [@encryptor](https://forum.arduino.cc/u/encryptor)\ **Post date:** [July 19, 2015, 2:46pm UTC](https://forum.arduino.cc/t/how-can-i-see-com-port-for-usb-device-on-macbook-pro/324714/1 "2015-07-19T14:46:20Z")
I'm trying to connect an arduino to my macbook pro and wanted to see which communication port I'm connected to. I didn't see anything in System Information to help me identify com ports thru USB connections. Please help. Thanks MacBook Pro with Retina display, OS X Yosemite (10.10.4) ---
**Author:** ![rockwallaby](https://avatars.discourse-cdn.com/v4/letter/r/85f322/32.png) [@rockwallaby](https://forum.arduino.cc/u/rockwallaby)\ **Post date:** [July 19, 2015, 11:19pm UTC](https://forum.arduino.cc/t/how-can-i-see-com-port-for-usb-device-on-macbook-pro/324714/2 "2015-07-19T23:19:09Z")
You want to see a communications port from what application ? Most applications that use communication ports, or know as tty ports will provide a way to list then for you to make a selection. You can go into terminal and just type ```cpp ls /dev/tty* ``` and look at your results for a ttyUSBxx or more likely tty.USBxx device, where xx is the sequence number. * * * Paul ---
**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\ **Post date:** [May 6, 2021, 10:55am UTC](https://forum.arduino.cc/t/how-can-i-see-com-port-for-usb-device-on-macbook-pro/324714/3 "2021-05-06T10:55:34Z")