The Ubiquiti Networks UniFi Protect Network Video Recorder Pro (UNVR-PRO) is a 2U-sized video recorder with (7) 2.5/3.5" HDD bays that can provide up to 60 days of storage for (20) 4K cameras or (60) Full HD cameras (with even more storage retention with larger hard drives).
(7) 3.5" HDD / SSD support
(1) 10G SFP+ uplink and (1) GbE RJ45 port
Data protection with RAID storage technology
DC power backup-ready
1.3" touchscreen for management