Here's why the HDMI 2.0 port on the new MacBook Pros isn't a deal-breaker - Times of India

The Apple MacBook Pro specification page notes that the HDMI ports on the new MacBooks are actually HDMI 2.0 instead of HDMI 2.1.

New MacBook Pro models limited to HDMI 2.0 - Current Mac Hardware Discussions on AppleInsider Forums

MacBook Pro 2017 review: Enter Kaby Lake

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Review: Seiki's 39-inch 4K TV as a display for a 2013 MacBook Pro with Intel Iris - 9to5Mac

Macbook Pro 13 2017 USB-C to HDMI 2.0 - Apple Community

Do MacBook Pros have HDMI ports? Why or why not? - Quora

Apple MacBook Pro 14 Series - External Reviews

Why do so many people buy a MacBook Pro when they really don't need them and a MacBook Air is completely sufficient to suit their needs? - Quora

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