I bought this unit to upgrade a DVR that is a few years old. I wanted a device that would support my existing cameras and allow me to upgrade to better cameras one at a time over time. This device easily recognized my hodgepodge of cameras and the image quality was very good. I also added an HD camera and it worked. It's a bit tricky to set up, so I removed one for that. The free iPhone app is pretty good too. In general, I am satisfied with the initial quality of the device.
TP-LINK Tapo C310 security camera white
30 Review
WOSODA Trail Camera: Waterproof 16MP 1080P Hunting Game Camera with Night Vision for Home Security & Wildlife Monitoring
11 Review
Blink Outdoor Camera Wall Mount Bracket Set - 5-Pack Plastic Protective Housing and 360Β° Adjustable Mount with Blink Sync Module 2 Outlet Mount - for Enhanced Blink Outdoor Indoor Camera System (Black)
11 Review
Blink XT/XT2 Camera Wall Mount Bracket - 360Β° Adjustable for Indoor/Outdoor Use - 3 Pack
11 Review