I bought this for a thunderbolt 3 dock I found at work. Seems to run my 4k 43 inch monitor just fine. My only complaint is it feels. very flexible. The price is very competitive with Belkin, my 2nd option if this startech one wasn't available. Update: After 1 year the cord still works great, I bought another one (the longer 2.7 feet one) to connect to my 4K Monitor. Not sure how long it will last, but I hope a very long time!
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