What purpose does the plastic handle on power supply unit packaging serve? No other hardware's typical packaging seems to share this trait.
migrated from serverfault.com Jan 12 '11 at 18:39
closed as not constructive by MDMarra, Daniel Beck♦, DMA57361♦, KronoS, Mokubai Jan 12 '11 at 19:18
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They are for holding onto with your hand. They ease transporatation, as PSUs are quite heavy, although these devices are also seen on other types of peripheral packaging.
This is how they are intended to be used.
Desktop power supplies generally do not have handles. Server power supplies with hot-swap capability are generally of a slide-in/slide-out design and require handles to be removed from the chassis. Some power supplies which are cold-swap may still have handles if they are either of a sliding design or of extreme heft. The SGI Octane, for instance, had a single cold-swap power supply which both of a sliding design and quite hefty.
EDIT: I just re-read the question and realized that it was regarding retail packaging, not the power supply chassis. I find that fragile items more likely to have handles on the packaging than non-fragile items. This is purely conjecture, but there might be some study showing that packages with handles feature fewer returns due to mishandling. I'd believe it.