Recording history is only limited by you hard drive space! This goes up to 10TB for each HDD , so for 4k videos at H265 compression , you get plenty of recording time. Besides, its response time is very speedy, only takes just a few seconds to pull up footage, which really surprised me.

I used to turn my personal computer into an NVR, but it performed poorly with high resolution cameras. For performance and simplicity, I recommend a dedicated NVR. This NVR is a nice little box, a lot smaller than what I envisioned. I didn't need to ever hook up a monitor to the NVR, as with headless I could see everything on my desktop in another room, but I do like the HDMI and VGA connections it came with in case I ever wanted to have a static display for it in my server rack. I tested the tracking and recording functions with the camera and was able to play back that video. Worked beautifully.

This is the third NVR I have tried, but this is by far the most reliable one of the three. The NVR is stable and is relatively quiet, of course, there is a hum, but it is not overly loud like some of the other NVRs I have used. The video quality is crystal clear, and the motion detection is accurate and on point. I am very satisfied with this product as well as with the customer support.

The NVR is competitively priced, and it has great features. The main reason why I purchased this NVR was because it records and plays back in 4K. There is nothing more frustrating when you are reviewing footage and you cannot see anything in detail. This 4K recording allows me to see everything clearly without a blur. This unit allows me to remotely view my cameras from anywhere using app. To save space and maximize my hard drive storage I have my NVR set to record motion only. I would highly recommend this NVR.

High-quality NVR, I have various cameras around my home and decided to put them all on a central NVR, POE provides enough power for all the cameras. Here is a fan to provide cooling which is good to prolong HDD life. Highly recommend this NVR to anyone and I will be purchasing another one as a gift for my parents for his surveillance system.