Everyday Solution #2 - RESONATE RouterUPS CRU12V2 & MVC (Multi Voltage Cable) Splitter Cable (Combo Offer)
MVC bridge cable helps to provide power backup for discretely powered devices. E.g. A Modem at 12V/0.5A and Router at 5V/1A. MVC Bridge cable only works with CRU12V2 and won't work with other variants.
Typical Setup: Adapter - 12V <> RouterUPS CRU12V2 <> MVC Cable, Modem/Router - 5/9/12 combination