The product fits perfectly in my Surface Pro 4. It doesn't protrude over the top edge and fits perfectly in the profile or tablet. It also has an HDMI output that supports true 4k, which I tested and it works great. Even with my keyboard folio, it still looks great and is easy to carry. If you are looking for a port expander, this is definitely a good choice. It also doesn't block the power port at all.
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