The HooToo HT-UE01 3-Port USB 3.0 HUB with 10/100/1000 Gigabit Ethernet Converter costs less than $30, and it greatly enhances what you can do on the Surface Pro series (all three generations).

The Surface Pro 3 and Surface Pro 4 can plug into the Surface Dock via USB: a hub that has four USB 3.0 ports and two ports for 4K displays, plus an Ethernet port for sharing screens and files ...

On top of this the Surface 3 matches the Pro 3’s 802.11ac WiFi, Bluetooth 4.0 Low Energy (LE), full size USB 3.0 port, Mini DisplayPort and microSD card reader.

Surface Pro 6—after dropping the version number for last year's model, ... the proprietary Surface Connect port, a 3.5mm headset jack, and a microSDXC card reader.

The Eletrand Multi-Function Surface Pro 4 USB 3.0 Hub is low-cost, and it feels like it. But it also packs just about every port or adapter you would ever want for the Surface Pro, and it works ...

Because it is proprietary, we don’t know the precise technical specifications. We also don’t know exactly how the standard has changed since it was first introduced with the Surface Pro 3 in 2014.

There is also a $200/£165 Docking Station for Surface Pro 3 with a Mini DisplayPort supporting resolutions up to 3,840x2,600 pixels, five USB ports -- three USB 3.0 ports and two USB 2.0 ports ...

The USB 3 port on the Surface Pro itself also supports charging. Using both outlets, I’m able to able to charge the Surface Pro 3, a phone, and an external battery pack from a single AC outlet.

In its ads, Microsoft says the Surface Pro 3 is "the tablet that can replace your laptop." With the addition of a new docking station, the Surface Pro has its eye on your desktop PC, too.

The Pro sports a 12-inch display, stereo speakers, a microSD card slot, a full-size USB 3 port, a Mini DisplayPort, and two 5-megapixel cameras. It comes in a variety of CPU, RAM, and storage ...

Surface Pro 3 - 292 x 201 x 9.1mm and 794g ... port on the Surface Pro 3 lacks the power to charge both the SP3 and a smartphone at the same time so an upgrade would have made sense. ...