The iConnectMIDI2+ 6V 18W Power Adapter from iConnectivity is an optional power adapter for use with the iConnectMIDI2+ device (sold separately). It is designed to power the iConnectMIDI2+ unit and charge iOS devices. The power adapter is only necessary for keeping an iOS device charged, because the iConnectMIDI2+ is initially powered over a USB bus port. This adapter operates over a range of 100 to 240 VAC, 50/60 Hz and outputs 6 VDC/18W on a center positive supply barrel. In addition, this power adapter can be used internationally with optional wall plug adapters.