Buy with Confidence: With Monoprice's Lifetime Warranty on all Cables, you can rest assured we stand behind our products and our customers. The cable is bi-directional which means that you can use a DP source with a MDP monitor or a MDP source with a DP monitor. The conductors are made of pure copper and the connectors are gold-plated for improved connectivity and corrosion resistance. Connect your displayport and mini displayport sources and devices with this bi-directional cable from Monoprice.