Buffalo TeraStation 5420RN Windows Server IoT 2019 Standard 16TB 4 Bay Rackmount (4x4TB) NAS Hard Drives Included RAID iSCSI - Intel Atom C3338 Dual-core (2 Core) 1.50 GHz - 4 x HDD Supported - 40 TB Supported HDD Capacity - 4 x HDD Installed - 16 TB Installed HDD Capacity - 8 GB RAM DDR4 SDRAM - Serial ATA/600 Controller - RAID Supported 0, 1, 5, JBOD - 4 x Total Bays - 10 Gigabit Ethernet, Gigabit Ethernet - 3 USB Port(s) - 3 USB 3.0 Port(s) - Network (RJ-45) - LeftHand OS 10.0 - iSCSI, T: