I would like to see if anyone has the same problem with the USB socket of Surface 3. I inserted a USB receiver of a wireless mouse into my Surface 3. The plug of mouse receiver got stuck with the USB socket of my Surface 3 and I could not get it out. No matter how hard I tried, the plug was still clutched in the USB socket. Finally, I pulled the USB plug by a pair of pliers and caused the USB socket totally damaged as shown in the attached photo. I got a new replacement from the Microsoft dealer by a payment of HK$2,200 (near USD 300). Inspecting the new machine, I find that there are a pair of hooks on the 2 sides of the USB socket of Surface 3 (as shown in the attached photo). This pair of hooks just fit the holes on the USB plug of my wireless mouse (as shown in photo). This is why they got stuck with each other permanently and have no way to separate them again. I think this pair of hooks in the USB socket is a serious design problem of Surface 3. I cannot find another USB socket which have the same problematic design. Please check carefully if there are holes on the USB plug before you insert it into the Surface 3 socket, otherwise you may face the same problem as mine.