E-204L rackmount chassis is designed with four 5.25" drive bays and two 3.5" drive bays. combined with BPU 2.5" to 5.25" hdd cages provides up to 24 x 2.5" hard drives or SSDs capability for any RAID configuration. Four 80mm fans is equipped with E-204L to provide the best air ventilation preventing critical equipment from heat damage. E-204L also supports E-ATX motherbaord and redundant power supply to provide maximum reliability and performance for server applications.