Roland AIRA Compact E-4 Voice Tweaker - Manual (Page 5)

Panel Descriptions
5
Rear Panel
A. [POWER] switch
Turns the power on/off.
B. USB port (USB Type-C ® )
Use a commercially available USB 2.0 cable (Type-A to C, or Type-C to C) to connect this port to your computer.
This is used to transfer USB MIDI and USB audio data.
* Do not use a USB cable that is designed only for charging. Cables used for charging only cannot transmit data.
C. MIDI IN/MIDI OUT jacks
Use TRS/TRS connecting cables (BCC-1-3535 or BCC-2-3535, sold separately) or TRS/MIDI connecting cables (BMIDI-5-35, BMIDI-1-
35 or BMIDI-2-35, sold separately) to connect this unit to an external MIDI device.
You can make this unit play in sync with a MIDI device by connecting the devices with a commercially available MIDI cable.
* Do not connect audio devices to these jacks. Doing so may cause a malfunction.