Aluminum Disk Array Module w/Backplane Map-V34/V45 Features: Full Aluminum mechanical design Special Power distributing electronic design. Bus Signal adjustment for signal skew. Impedance match for copper conductivity. Shock Resistance and accurate locating swap tray mechanical design. SCA connector. Automative HDD sensor and power up. Good Air Flow Design for cooling down the system (High Efficient Cooling Fans). Monitoring Fan Speed and Alert. Security Key Lock for each swap tray. Ultra 160 supported. Mount into standard 5.25 frame space. Model No. Map-V34 Map-V45 Drive Type Ultra 160 SCA SCSI HDD SCSI-ID Selector YES Front Panel 4 x (1" height) 3.5" HDD Tray 5 x (1" height) 3.5" HDD Tray Rear Panel SCSI IN Connector x 1 SCSI OUT Connector x 2 SCA Connector x 4 SCA Connector x 5 Power Connector x 2 Material Base Case / Tray Plate: Aluminum Tray mask Assembly: Plastic ABS 94HB Front Display Panel: ABS 94HB Cooling Fan 3 (40x40x20 mm) Ball Bearing Fan 4 (40x40x20 mm) Ball Bearing Fan Fan Alarm Controller YES Dimension (WxDxH) 147x217x128.8 mm 147x217x171 mm Packing N.W.: 0.97 kgs N.W.: 1.21 kgs G.W.: 1.52 kgs G.W.: 1.76 kgs Measurement: 0.43 CuFt Measurement: 0.61 CuFt