SR30169 Features: Built-in 4-port 12Gb/s backplane for SAS and SATA drives Built-in two internal 2.5" drive bays Padlock loop, Kensington slot and intrusion switch Front bezel lock to prevent unauthorized access Optimized hard drive intervals to deliver the best cooling performance Maximum venting area on front bezel and side-venting holes for add-on cards Fully utilizes 120mm fan of PS/2 PSU to exhaust heat Balanced thermal and acoustic performance technology Specifications: M/B Form Factor Mini-ITX (6.7"x 6.7") Dimensions (D x W x H) 310 x 200 x 270(mm) 12.2" x 7.87" x10.63" Drive Bay Internal 2.5"：2 3.5" Hot-swap：4 Storage Backplane 12Gb/s SATA & SAS PSU Form Factor PS/2 Single Indicator 1 x Power Status1 x HDD Activity1 x Warning LED Front Control 1 x Power On/Off1 x System Reset2 x USB2.0/ USB3.0 (Option) Cooling Fan Front: 1 x 120mm System Security Padlock Loop, Kensington slot, Intrusion switch Expansion Slot Opening 1 x Low Profile Net Weight 5.2kg Gross Weight 7.0kg Cubic Feet 1.85 Container Loading 20’:56440’:113440’HQ:1284