From Halopedia, the Halo wiki
The Ren shuttle is small and boxy in shape and has two small viewports on the front. The Ren is capable of quick, short-range travel due to its four impulse drives and is nearly as fast and maneuverable as the Seraph. Two of these impulse drives are mounted on "wings", much like a Banshee as well as two more at the rear. Although most Rens are not armed, they boast compact slipspace drives which make them valuable vehicles for traders and smugglers.
When a civil war between the Sangheili broke out over Carrow in September 2558, several diplomats of the Unified Earth Government's Diplomatic Corps evacuated the cruiser Unwavering Discipline in a Ren.
In Ancient Egyptian mythology, a person's ren, or name, was a part of their soul that would live on as long as it was spoken.
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