A Magnetar is a type of neutron star that possess an extremely strong magnetic field which decays over a course approximately 10,000 years. However, magnetars used in the powering of voidgates and their protective aegispheres are known to somehow survive for over a million years without showing any sign of depleting in the near future. These unique and possibly altered stars have semi-transluscent quantum spheres nested within them that somehow act as a conduit to the gates and may be what is altering the length of their normal radioactive cycles.
The voidgate magnetars are protected by aegispheres and determine the design of the network. Some magnetars are connected to multiple voidgates and produce a hub, while other link to only one gate and act as a spoke from said hubs.