Lots of vendors sell something like that you just need to look for an NVR. Ubiquiti, Synology, Reolink, Amcrest etc all sell products like this to varying exten

Lots of vendors sell something like that you just need to look for an NVR. Ubiquiti, Synology, Reolink, Amcrest etc all sell products like this to varying extents, but other companies have realized you can make better money selling outrageous cloud subscriptions for subsidized hardware.