This product is either discontinued or we cannot get that from suppliers.
Ubiquiti UNVR-6TB-R UniFi Protect Network Video Recorder, SGCC Steel, Processor Quard-Core ARM Cortex -A57 at 1.7 GHz, System Memory 4gb, On-Board Flash Storage 8gb, Consumption:100W, Max.Power Budget for Drive 75W, Power Supply AC/DC Internal, 120W, Interface Network 10/100/1000 Mbps RJ45 Ethernet, (1) 1/10 Gbps SFP + Ethernet.
The UniFi® NVR is an enterprise network video recorder that integrates an NVR, the UniFi Protect software, and a 4-drive bay.