You can refer to this article to identify the port of your Mac device. Identify the ports on your Mac
1.Mac with Thunderbolt 2:
Please use a mini DisplayPort cable to connect between your Mac to VP monitor’s mini DP or DP input.
2.Mac with Thunderbolt 3:
Please use a Thunderbolt 3 or USB Type-C cable capable of DP ALT mode between your Mac to VP monitor’s USB Type-C input.