I got this for my 2024 Honda Ridgeline and never got around to installing it, so it's completely unused/uninstalled. I'll stop short of using the phrase "brand new" as I did open the packaging and take everything out when I got it to plan for installation. I kept putting it off and then ended up getting a new car and my Ridgeline now belongs to my wife, who has no interest in having a dashcam.
These go for $270 (maybe $250ish if you can use the promo code they have currently) on Amazon brand new.
You can look up info on these, but basically, the front camera is housed in a piece that actually replaces the OEM attached to the windshield, so you don't have a visible dashcam mounted on your windshield. It should fit Ridgelines made between 2017-2025.
Here's a link to one on Amazon if you want to see more...