Onelink pro dock question - thinkpad yoga 12

[scd303]

Hi, I just got my first thinkpad, its the thinkpad yoga 12 and I really like it.
My question is which onelink pro dock will work with the thinkpad yoga 12?
There seems to be one with model number du0933s1 and one with model number 4X10E52935. Are they the same or are they two completely different things

thanks guys!