A video recorder with (4) 2.5/3.5" HDD bays that can support up to 30 days of storage for (15) 4K cameras or (50) Full HD cameras.
 
(4) 3.5" HDD / SSD support
(1) 10G SFP+ uplink and (1) GbE RJ45 port
Data protection with RAID storage technology
DC power backup-ready