Edirol V4

For cutting-edge Multimedia artists, the V-4 offers V-LINK, an exciting feature from Roland that provides for realtime performance control over digital video, for the ultimate in creative expression. The V-4 video mixer has MIDI in/out/through, for real-time or sequenced control of video sources with effects and transitions. The V-4 is a part of the Roland SD video mixer line.

More info about the Roland Edirol V-4 can be found here.