Arduino Nano not found on Macbook Air

I am new to Mac, so forgive me if there is a simple fix I am overlooking. I have downloaded the latest Arduino IDE from arduino.cc and the FTDI driver linked to in the installation guide. The Arduino Nano also works fine with the same usb cable on a PC. The only COM port available is /dev/.cu/.Bluetooth-Incoming_Port which is not my Arduino. In System Information there is a device called USB2.0-Serial which shows up when the board is connected and disappears when it is disconnected. The Link LED on the board also slowly blinks when connected to the Macbook.

Arduino Nano (official)(ATMega328P)
Macbook Air 2017 Core i5 Model
MacOS 10.13.4 High Sierra (latest version)

With Arduino connected:

Without Arduino connected:

Board menu in IDE:

Any help is greatly appreciated.

Are you sure it's an official Arduino Nano? I though "USB2.0-Serial" indicated a clone Nano with the CH340 USB chip, in which case you need a different driver: