Which exciting feature is unique to HP t410 All-in-One Smart Zero Clients?

A.
Three-year limited warranty

B.
One-wire technology

C.
Marvell ARM Armada 510 Processor

D.
Texas Instruments ARM Cortex processor

Explanation:
http://www8.hp.com/us/en/hp-news/pressrelease.html?id=1232180#.UY0ioCsS29w(see the first bulleted point on the page)