CSPC-SK335B-6G Overview Features Backplane: SATA Interface Drive Bay: 5 1 Height SATA HDD Connectors (To HDD): 22 pins Comm Con x 5 Connectors (To Host): 7 pin x 5 Indicators: LEDs for Power On/Off, Fan failure/Overheat Warning/ 2 x front USB Switch Alarm Reset Cooling Subsystem 1 x 80 mm rear fan Net Weight: 1.8kg Construction: SPCC + Ni Electroplating Optional Feature: SK33502:NO-SAF - TE/I2C Interface; SK33512:Yes-NO-SAF - TE/I2C Interface Dimension (DxWxH) 216 mm x 146 mm x 127.5mm (8.5 x 5.8 x 5.0) for Chenbro products of RM511 , RM412 , RM411, RM313