5 Split Large 10.1 inch 1080P Screen Backup Camera Audio Monitor & Built-in 128GB DVR Dash Cam for RV Truck Trailer Rear Side Front Reversing View Wired System Image Waterproof Avoid Blind Spot

I found the buttons and navigation to be pretty easy to learn and use after a few minutes. Cameras seem to be of pretty good quality. Highly customizable with what cameras you plan on using, and where and how you plan on using them.

While camera cable lengths were more than enough, the large 4 pin connector was impossible to fish through my Peterbilt mirror brackets. I had to spend time cutting ends off, fishing cables through and re-soldering and heat shrinking both left and right cables in the dash. Not a huge ordeal, but tedious and time consuming when a lower profile connector could have been used. I heat shrinked over the plugs /connectors at exterior cameras to prevent any premature corrosion issues, as they do not appear to be remotely water-tight. It would also have been nice if the monitor cable had a removable plug of some sort to make installation a little easier. EDIT TO ADD: 5/19/23, the new replacement "head unit" does in fact have a removable plug. This is an excellent update to the original design.

The screen was put together with dirt under the outer cover. I'm not talking about the protective cover that you remove after installation, but the top layer of the screen. There's several visible pieces of debris under the top layer causing air bubbles. I don't really use the screen while driving, and am still able to view videos, but the lack of build quality is disappointing. EDIT TO ADD 5/19/23, the new, updated display is shows a much better build quality out of the box.

I had some functional issues with the first unity and initiated a return/exchange through Amazon, and the replacement also has several air bubbles in the top layer of the screen. I replaced only the "head unit" and would love to be able to change my 1 star to a better rating once I have a few days use with it and it at least doesn't have ALL of the previous unit's issues.

EDIT TO ADD 5/19/23 Revision: After some time with the system, it performs as expected. The seller has sent a new, updated unit in encouragement of revising my original rating. I have not had a chance to use the updated unit, but have changed my rating to 5 stars due to the incredible customer support of this seller and their genuine desire for me to be satisfied with their product, along with the change in wiring mentioned above.

The best product I have ever purchased for use on my Mercedes Benz GL 450 4Matic and the Toyota Sequoia. It has an excellent night vision, pictures are very clear and there is an obvious value for money. I have bought a lot of gadgets for my vehicles this year, but this product stands tall amongst all of them. The picture quality is unparalleled and the monitor does not obstruct my vision when driving.

The unit has been replaced, I believe there may have been a language barrier that caused the below issue to have occurred. I’ll get it installed soon.

The unit arrived with some features not working a request for assistance has been ignored.

Everything is just exellent

this camera is a great purchase. I currently only have the 2 front cameras connected as I have a brand new truck, and haven't figured out where exactly I want to place the rear cameras. But the night vision on this camera is almost as bright as day light vision. It enhances the available light to show details I have never seen in any other dash camera system i've owned in the past.
I would highly recommend this dash camera. It is fairly easy to install, however, as a truck driver with a brand new truck, I did not want to splice into factory wiring, and I do not use the camera for backing up, so my cameras run all the time. Powering my system was fairly easy as well by just purchasing a 12 volt cigarette lighter adapter.

Great picture but Parking mode vids are corrupted and unable to be viewed. Warranty says Customer Service response in 24 hours ... not true at this time (55 hours+). Three emails sent and no Phone # to contact them. And our return will now mean a lot of holes in the body and interior with a lot of wire taps to repair under the dash of the RV. Again Avoid this product it does not work as stated.
Update 6-1-2022
Customer Service responded and suggested a 256 G Ultra 4K card and that fixed the issue . Working perfect now ! But that was an extra 60 bucks... However worth it ...The Image and 5 camera recording Awesome!

It seems to be working ok so far. Screen seems somewhat cheap but had been giving very crisp images until I turned it on for the picture in the review, it now has vertical lines. Guess we will see if the lines go away now. Cameras give good picture. Wish the rear camera had more of a fish-eye lens so I could see more. Record function hasn't worked yet, doesn't seem to recognize the sd card but that feature was not a must have for me. Overall, I guess you get what you pay for, but it does the job for a somewhat reasonable price.

Good picture quality night vision. Easy to read directions to install. Customer service was very helpful. Very good value for the price.