Precautions When Using Communications Interface
This system has the following restrictions when using the communications interface with mPOP.
![](../../illust/mPOP_multi_BT-USB.png)
Destination | Host device | Communication |
Bluetooth | iOS, Android, Windows, Mac, Linux | Cannot be connected simultaneously* |
USB-B | Windows, Android, Mac, Linux | Cannot be connected simultaneously* |
* Communication with the device that was connected first takes priority.
Bluetooth and USB-B cannot be connected simultaneously for the host device.
When connecting by using Bluetooth, do not connect to the USB-B port.
When switching to a USB connection after a Bluetooth connection, turn off the mPOP power, use the USB cable to connect to the host device, and then turn the mPOP power on.
When switching to a Bluetooth connection after a USB connection, turn off the mPOP power, disconnect the USB cable, turn the mPOP power on, and then make a Bluetooth connection.
![](../../illust/mPOP_Multi_USB_C-B.png)
Destination | Host device | Power supply | Communication |
USB-C | iOS | 3.0A max. power supply | Cannot be connected simultaneously* |
USB-B | Android, Windows, Mac, Linux | - | Cannot be connected simultaneously* |
* When both devices are connected while mPOP remains turned on, communication with the device that was connected first takes priority.
USB-C and USB-B cannot be connected simultaneously for the host device.
When both devices are connected while mPOP remains turned on, communication is established only with the device that was connected first.
If mPOP is turned on while both devices are connected, this product preferentially communicates with the host device connected to USB-B, and only provides power to the iOS device connected to USB-C.