Sample Product -> Send it, test it, sell it
Because nothing says >I love you< like a big box with a power supply inside.
Need your reseller to fall head over heels for your latest case, cooler or PSU?
Ship them a sample - no flowers, just fans.
This item is for test purposes only (but hey, it works like the real thing ? because it is).
One small step for logistics, one giant leap for your sales pipeline.