Sans Digital TowerRAID TR4X6G - 4 Bay 6G SAS/SATA Modularize JBOD Storage Enclosure (TR4X6G) Four 3.5-inch SAS or SATA hard disk drives to SFF-8088 Mini-SAS interface. Accesses four hard drives using only one cables. Modularize design, with 4 x hot-swappable trays Supports JBOD, spanning, RAID 0, 1, 1+0, 5, 6 with spare via RAID controller. Supports Areca, Dell, LSI, Intel, Adaptec, Highpoint SAS or SATA RAID controllers. Cable-less backplane design supporting hot-swappable SATA and SAS hard drives. Supports plug & play for easy installation. Compact enclosure with dust-free cover.