I believe this ship speaks for itself. The Borg, a highly advanced civilization, have been able to link their minds directly to cybernetic components and to their ships. The Main Computer in their ships are themselves. As an effect of this, their ships are huge and very powerful. They are armed with special tractor beams, which can extract the energy from a ship or drain its shields, and they have cutting beams which can cut through a ship's hull like butter. they can also create new weapons for specific tasks. There have been few races which could offer enough resistance to defend themselves against the Borg, most notably the Feds (twice!). The Borg have several starship designs and sizes, most notably the Cube (overhead) and the Sphere (below).