 The Star 48B version has an extra 11 kilograms of propellant more than the regular Star 48, for a total of 2011 kg.There is a version of the Star 48B that is lengthened and also heavier, called the Star 48B L.

In operation as a third stage, the Star 48B sits on top of spin table, and before it is separated it is spun up to stabilize it during the separation from the previous stage.