Hypertube pillar booster is a one of my-self made blueprints from my blueprint library. It has 3 mk.2 power connectors (0/7 ones) that are already connected to each other, with every single booster. You need only to connect them to your powerline. IT IS, a two-way system, in example the booster on the top can boost you forward and the booster below can boost you to the opposite direction. It's your choice which directions you want them to boost you. THERE IS also another version of the same pillar you can download without hypertube boosters.