- 1.27PB 4U-106 Rackmount JBOD with Dual IO modules, 4 - 12Gb x4 mini-SAS HD host and expansion ports, two x1G Ethernet RJ-45 ports, redundant 2kW PSUs, redundant fans and 106 12TB 3.5" SAS HDDs Model ST12000NM004J. Hot swappable - hard drives, power supplies, cooling modules, expanders, I/O modules. Power cables included. Out-of-Band CLI via Management port and In-band SCSI Enclosure Services 5-Year Limited Warranty on Enclosure and all Storage Components