The black D Storm Series D-400L-7SE 4U High Performance Rackmountable Chassis from iStarUSA supports up to 7 full-length, full-height add-on cards. When combined with the BPU or T Series HDD cages, it can enable hot-swappable JBOD and RAID configuration. The chassis has a total capacity of twelve 3.5” or thirty-six 2.5” HDD drives for high-density data storage. The center, hot-swappable 120mm fan provides enhanced thermal cooling solution. You can achieve uninterrupted operation with the iStarUSA redundant power supply. The chassis provides your server or cluster maximum flexibility and performance.