What does this booster actually do?

It takes one video signal and distributes it to four RCA outputs, so several screens can show the same source. It is a distributor, not a converter.

Will it work with any car screen?

It works with devices that take composite video over RCA. Screens that only accept HDMI or digital input need a separate converter.

It runs on 12V, matching a car's electrical system. It has a dedicated power port on one side.

Can I mount it inside the car?

Yes. The metal case has flat flanges on both sides with pre-drilled holes and slots for screws, so it can be fixed to a panel or bracket.

The packing list names the signal distributor only. RCA cables and a power lead are not included.

Does it boost weak signals?

It is sold as a signal booster and distributor, but no gain figure or supported resolution is published, so treat it as a splitter for short in-car runs.

Where is the 4-Way Car Video Signal Booster cheapest?

At Deal.ai, for $18.99, as of our latest check.

Is the 4-Way Car Video Signal Booster at its lowest price?

The lowest price we've seen is $10.47 at Deal.ai on November 12, against $18.99 now.

Free shipping on everything10% off your first orderNo account needed · Buy 2, save 10% · 3+, save 15%

4-Way Car Video Signal Booster

Sold and shipped by Deal.ai

$18.99Free shipping

Buy 2, save 10% · 3+, save 15%

Extra 10% off your first order

Color: Black

Arrives about Nov 21 – Dec 1, from a warehouse in China

30-day full refund: if you're not happy with it for any reason, or it never arrives, tell us within 30 days and we refund you in full. Shipping and refunds