Surface Pro 7 has only one USB-A port, one USB-C port and one microSD card slot under the stand. Not very versatile to connect. There are times when I need 2 USB-A ports. This dock gives you 2 USB-A ports and more. It plugs into the Surface Pro 7's USB-A and USB-C ports, but those ports are duplicated by the docking station. The docking station has 2 USB-A ports, a USB-C port (top), an SD card slot, a MicroSD card slot (TransFlash) and an HDMI port. Unlike some docks I've tried, you can use all of these ports at once. As you can see from the photos, I have a mouse and USB stick plugged into the USB-A ports, SD card and TransFlash card plugged into the slots, HDMI cable plugged in, and another dock plugged in connected to the USB port. -C. Port to which another USB storage device is connected. The screenshot shows all 4 devices. You can also see that the display plays fine on my external monitor. You can duplicate or expand ads. You can also display your screen on an HDTV. The card slots are very useful. The Surface has a TF slot, but it's under the stand. If you have a protective case covering the stand, you can't get to the TF slot. This docking station solves this problem. The dock itself is about 1/16 inch thicker than the Surface. The side that touches the surface is angled like a surface so it fits snugly. One reviewer said it looks like cheap plastic, but it's actually aluminum. Very light and durable. The USB-A ports can be a bit cramped, so you can disable the dock if you remove your USB drive so you can hold on to the dock while doing so. They will likely loosen up over time. The picture shows that I connected another docking station to the USB-C port of this docking station. I didn't like the first docking station as it dangled in the air due to the short cord. Also, you can only use one card slot at a time. I think this dock would work better for a laptop where the connector is in the base. This docking station is perfect for Surface. I am very happy with this docking station so far. It would be great if it was black to match my surface. :)
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