
Certified cable matters 3.3ft Black Thunderbolt Cable (Thunderbolt 2 Cable) paired with Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 The adapter enabled my old (Late 2013) iMac to be used as a second monitor for my iMac Pro while retaining the functionality of the old device. If the old iMac had had a minimum display port instead of Thunderbolt 2, the solution would have been significantly cheaper. Since the cost of both was about $93.