Can anyone recommend me a dual USB output 12V to 5V converter?

[DashcamFreak]

I am trying to add a dashcam setup for my other cars. I used to buy my dual USB output 12V to 5V converter here but it seems like they don't sell it anymore:
https://www.ebay.com/itm/321645899181

Can anyone recommend me where I can buy a dual USB output 12V to 5V converter?

 

[Nigel]

It will depend a bit on which dashcam it is for, some are a bit fussy, some don't use USB power.

The one that came with the camera is normally the best, with that you know you will get sufficient voltage and current, anything else is a bit of a gamble, trial and error.