Quad-Head video at HD60 via DisplayPort 1.2 MST (Multi-Stream Technology) Point to point extension up to 328 ft (100m) over CATx or 2.5 miles (4km) over fiber cable CATx or Fiber flexibility True USB emulation supports the most advanced keyboards and mice Intelligent EDID management reduces monitor compatibility issues Digital / Analog audio 4 x Tri-color connection status LEDs Single or Dual-Head models also available...