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By certification 
The USB-C to HDMI Adapter lets you connect your MacBook with USB-C port or MacBook Pro with Thunderbolt 3 (USB-C) ports to an HDMI display.
This adapter allows you to mirror your MacBook or MacBook Pro display to your HDMI-enabled TV or display in up to 1080p at 60Hz or UHD (3840 by 2160) at 30Hz. It also outputs video content like movies and captured video
Chipset: Cypress & Parade Wire material: Coaxial cable
HDMI Video Format: Support HDMI 2.0 and compatible with previous version, support 4K(4096*2160, @30Hz), DP1.2 Alt mode
