Of course, the Surface is loaded properly.
And the best: There are (and from the dock in the Surface) support simultaneously both display ports. This means: With the docking station I can 2 monitors with different images operate (Advanced Desktop). The Surface screen turns off, however at the moment. (2 pictures)
Tried with: Surface Pro 3, i5, 8GB, and Windows 10 Enterprise Technical Preview 9926
Have also still a "Pluggable USB 3.0 Dual graphics (DVI / VGA plus HDMI) and Gigabit Ethernet Adapter (DL3900 Chipset) for Windows 8.1, 8, 7, and XP" on USB 3 port of Dokckingstation run (as I said: For Windows 10 ). So I'll come loose on 3 or more monitors. The USB Monitor is the "normal work" (Word, Excel, DevStudio, etc.) can not be distinguished from the others. (No gaming or video tasted).
Conclusion: "must have"