A far better solution is to have two external monitors with dp connections then you simply daisy chain the surface and your external monitors.

Very cool solution for my standup treadmill desk and my sitdown desk.

We needed to buy three DP to HDMI adapters to run the monitors.3) Long DP to HDMI adapters are not a great solution.

The best solution I have found is to plug only one DP cable into this hub (hub connected to Surface Pro 3 doc

I thought to myself there has to be a better solution and there is

Before purchasing I had done tons of research on the best solution for my dual Asus Monitors

Thankfully the solution is cost effective and can be used with Startech ST121SHD50 HDMI CAT6 transmitter/receivers to increase the distance of the PC from large HDMI presentation screens considerably