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All of the goodness of Mutable Instruments Yarns, but in an Intellijel 1U format. All four voices of functionality are retained, with 3.5mm jacks for the MIDI input/output. There is also a connector on the back to connect to the Intellijel case jacks.
Summary of Yarns capabilities:
To connect to the Intellijel case use the 4x2 pin header with the 10p-10p included cable. Line up the red line on the cable with the 4x2 header (the non-red line side of the cable/connector will have two pins not connected). Then connect the other side to the case (following the red line indication).
Please note that Threads does not support USB-MIDI. It only supports MIDI-DIN.