The internal routing version seems to be exclusive to the brands that carry this frame, such as the Winspace SLC. This version has a D shaped steerer tube and proprietary headset to allow for passing cables through the stem and in front of the steerer tube.
However, Speeder will only sell you the frame with a standard fork (no internal routing)...ask me how I know. I ended up buying a Winspace. Otherwise, the frames are identical.