Dahua EVS7048S-R

Memory RAM,8GB (up to 16GB)                                                                                                                                                             Up to 768 ch (1536 Mbps) incoming/recording/forvarding 48HDDs(up to 8TB each HDD) SATA/SAS, Enterpris-level HDD 2mini SAS,1e SATA/USB2.0, 2 USB 3.0, 10Giga RJ45 Sypport RAID 0/1/3/4/5/6/10/50/60/JBOD Redundant Power,Dual Controller, 4ten-Giga Optical fiber interface(optional)