Aicsys inc. Ruggedized 3u rackmount chassis of rck-316m to be a military/industrial grade server chassis. The rck-316m is constructed with 1.6mm secc heavy-duty steel, and created for the short depth of 381.6mm / 15â?�, a high-density storage enclosure for high-performance system in critical application under shock and vibration conditions, and extreme harsh environments. The rck-316m offers (1) 3.5and (1) 5.25external drive bay, and (2) 3.5internal drive bays. The front panel is featuring with (2) usb 2.0 ports, on/off switch, and led indicator for power status and hdd activity. Rck-316m contains (1) 80mm ball-bearing fan with replaceable air filter and (1) 40mm fan on the rear for cooling solution. For security feature, a lockable front door to prevent unauthorized access. The rck-316m supports atx motherboard with 7 slots for expansion and 1u form-factor atx power supply. Aicsys inc. Is an ipc manufacturer and oem/odm system integrator for hardware solutions. Aicsys inc., provides best quality products for wide range of industrial rackmount/wallmount chassis, sbc board, backplane and other accessories to guarantee achievement of customer projects with reasonable price for more business opportunities. Product features: Secc 1.6mm heavy-duty steel Supports atx motherboard with 7-slot expansion Lockable front door (1) 5.25" external drive bay (1) 3.5" external drive bay (2) 3.5" internal drive bay (2) front usb 2.0 ports (1) 80mm ball-bearing fan with replaceable air filter (1) 40mm fan on the rear