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Apple's new 2021 MacBook Pro only comes with an HDMI 2.0 port which cannot output 4K at 120Hz on an external display - NotebookCheck.net News
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USB C Adapter for MacBook Pro/MacBook Air M1 M 13" 15" 16", 6 in 1 USB-C Hub MacBook Pro Accessories with 3 USB 3.0 Ports,USB C to SD/TF Card Reader and 100W
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USB C Hub Adapter for MacBook Pro/Air M1 M2 13" 14" 15" 16" 2022-2019, ACASIS 5 in 1 MacBook Pro Accessories with 10Gbps 3*USB 3.1/ 100W Thunderbolt 3 PD Charing/ 3.5 Audio mic - Newegg.com
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Tests show Thunderbolt ports on M1 Macs don't fully support USB 3.1 Gen 2 speeds: Digital Photography Review
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