Good camera works automatically once connected but as mentioned before takes up the USB port. The FCAM in my S8 uses RCA so you cannot use that app instead yo have to use the HD DVR app. I have a 512Gb SD card I am using. Atoto support says yo have to format it as FAT32 and using the HD DVR app to format it. The recorded video clips is great but I get a lot of flickers and pixalation intermittently when you play it back. I tried the exFAT format and that provides less frequent flickers and works better IMO.Update 5-22-23 Atoto sent me a replacement dash cam and new one works perfect. Thanks Atoto.

For what I bought it for, does the job just fine. Picture is clear, I can read the license plates of cars in front of me. Only complaint I have is that the video itself is not smooth. Again, not a *requirement* but actually WATCHING the videos for long would give me a headache. I wanted the camera primarily as a recording system in case of an accident. For that, it is fine. For making YouTube videos of yourself out driving? Yeah, not going to cut it.FWIW, looks like you can count on roughly 20min. per GB for recordings, so you can do the math there as to total capacity of your SD card. Data rate ~6.2Mbit/s, and files are H.264 mp4's, for those who care about such things.

First what I don’t like:This takes up the “only” USB Storage connection.I initially planned to use the USB Storage Connection for an external USB thumb drive so I could play Videos, Music & upload Pictures etc.And the Front Camera would use the yellow RCA jack (camera-in-port) but the ATOTO AC-44P2 is USB.I tried a few USB v2 hubs as recommended but none would split the USB port so I could have the Camera & a Thumb drive connected together at the same time. With all the USB Hubs I saw power on the camera (red flashing LED), but my head Unit (ATOTO A6PF Double-DIN) did not recognize the Camera.So, in the end as my iPhone worked great with CarPlay which kind of replaced the main functionality of the USB Thumb drive I opted to just keep the camera connected directly, no USB Hub or Thumb drive ☹What I do like:The camera looks very nice & sleek.I’m using a 256gb card which was recognized straightaway by my head unit.I would recommend this as a good module add-on to the head Unit (ATOTO A6PF Double-DIN)I’ve only had the head Unit & ATOTO AC-44P2 installed for 2 weeks, time will tell, if something drastically changes, I will update the review.

ATOTO AC-44P2 1080P USB On-Dash DVR Camera, Auto Recording, Compatible with ATOTO A5/A6/S8/P9 (Not F7/P8/P5/X10)

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 The hardest part was “how to install”Investing in added car safety is more important. The price is reasonable when it comes to Atoto products.I highly recommend this if your unit allows for front camera