JB 3000 4U/60bay single controller expansion enclosure by one drawer including 3x 12Gb SAS ports, 2x(PSU+FAN Module), 1x 12G to 12G SAS cable for storage or expansion enclosure with 12G interface, 60x3.5" drive trays and 1xRackmount kit (2.5" drive trays need to purchase additionally)