AIC RSC-4H1-35x - 4U 60x 3.5" internal hot-swap bays, tool-less 3.5" and 2.5" HDD tray, 2x 2.5" SATA hot-swap OS (with SATA cable x 2), 1200W 1+1 redundant power supply, 2x 30-port SAS 12G expander controller on backplane (35X series), 25" slide rail (for