What’s the difference between Single Data-Link and Dual Data-Link DVI?
A Single-Link (also known as a Single Data-Link) cable uses a single transmitter to send information across. A Dual-Link (or Dual Data-Link) DVI cable uses two transmitters and can relay a great deal more information and data across the wire (almost twice as much). This increase in data manifests as improved image quality, signal strength, and greater resolution support. Physically a Dual-Link cable will contain many more pins than a Single-Link cable so it is important to check for device compatibility before determining which cable is the correct one.