iMac: 2019 or newer, supports one display iMac Pro: all models, supports two displays, limited to 5120 × 2880 output (or full resolution with a supported external GPU)[12] MacBook Air: 2020 or newer, supports one display MacBook Pro 15-inch: 2018 or newer, supports one display MacBook Pro 16-inch: all models, supports two displays Mac Pro: 2019 or newer, supports two displays (580X, Vega II), three displays (W5700X), four displays (dual Vega II, Vega II Duo), or six displays (dual Vega II Duo) Macs with Thunderbolt 3 paired with a Blackmagic eGPU or eGPU Pro