6 U (2 x 3U)useable width: 84 HPuseable depth for modules: ~ 140 mmcontains: 1 power supply A-100PSU3 (2000mA), 2 bus boardsDimensions in mm:outside 482 width x 266 height x 240 depthinside 425 width x 245 height x 235 depth 19"-frame, 6U 445 x 266 x 240 mm 28 connectors for modules..