USB Type C Charging with USB 3.0 docks?
 

Is it possible to upgrade my current USB 3.0 docks to work with a USB Type C notebook and charge it at the same time?

Some sort of cable that would allow me to insert charging power and adapt the usb a connection to usb type c?

I currently have several Toshiba Dynadock U3.0 docks and I would like to avoid purchasing new ones, but I want to be able to connect with one cable to one of the new USB type C laptops, when I upgrade soon.