 The Universal MIDI Packet is intended for high-speed transport such as USB and Ethernet and is not supported on the existing 5-pin DIN connections.System Real-Time and System Common messages are the same as defined in MIDI 1.0.As of January 2019, the draft specification of the new protocol supports all core messages that also exist in MIDI 1.0, but extends their precision and resolution; it also defines many new high-precision controller messages.