Why am I having issues transferring files from an attached storage device using this adapter?

If you disconnect a USB-C power adapter from the multiport adapter while transferring files to or from an attached storage device, it will stop the transfer and may cause file corruption. It is also possible that there will be a loss of function if the power adapter is removed from the adapter while it is in operation. It is important to always follow the disconnection steps listed below. To discontinue charging the multiport adapter and/or to disconnect an SD card from the device, complete the following: Complete all data transfers over USB to and from the SD card. Disconnect the adapter from the host laptop. Disconnect your laptop’s power adapter from the adapter. Disconnect the HDMI connector, eject SD card and disconnect any USB peripherals as required.