Expand your laptop's connection port with this Insignia USB Type-C multi-port adapter. It has an HDMI port for transmitting 4K content to your external monitor and can also charge other devices with its 60W output. This Insignia USB Type-C multi-port adapter also has a Type-A output for syncing various devices.
Perhaps the adapter doesn't pass through enough power during use. I found with the power plugged into the adapter, my MacBook Pro late 2016's battery would drain. If I plugged the power directly into the Mac, the external display would not work. I do not recommend this product. Wish I had read the reviews instead of going with the store employee's recommendation.