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Technically any Thunderbolt3 docking station should be able to support what you're trying to do. Though it does depend on intended refresh rate and connection type. But any TB3 (not JUST USB-C) dock should support dual 4K60 over DP or HDMI If by "optimal" you're thinking price, they tend to range from $100-$300 depending on various qualities -- you can ignore "power delivery" (though you'll probably wind up getting it to some degree) as the machine can't take advantage of it. There are subreddits for TB3 docks. They seem to like the ThinkStation ones. Anker makes a decent one.
Sorry, there was a problem. Please try again later.The computer does have a USB-C port, so any of the docking stations that have a USB-C will work just fine.
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