You do not connect the two together. Both have their seperate cable. You can either use balanced 6.5mm jack cables (TRS) or XLR cables. Or a combination of the two (XLR on one side, TRS on the other). What do you want to connect to it? Then i can give some recommendations ;-)
Again, you cannot connect them to each other. They do not have a link-option. Now to connect them to your Computer, you could either use a split cable from TRS mini to two TRS 6.5mm or TRS mini to two XLR. But to keep all the cables balanced i would use an audio interface. Maybe a Behringer or a Focusrite. I'll post some links later.