Brief Specification Enterprise HDD (3.5-type) MBA3300NC / MBA3147NC / MBA3073NC ITEM MBA3300NC MBA3147NC MBA3073NC Ultra 320 SCSI 80pin Ultra 320 SCSI 80pin Ultra 320 SCSI 80pin 300GB 147GB 73.5GB Number of data heads 8 4 2 Number of disks 4 2 1 Basic specification Interface Formatted Capacity Performance Buffer size 8MB 8MB 8MB Rotation speed 15,000rpm 15,000rpm 15,000rpm Average Latency time 2.0ms (typ.) 2.0ms (typ.) 2.0ms (typ.) 3.4ms (typ.) 3.4ms (typ.) 3.4ms (typ.) 3.9ms (typ.) 3.9ms (typ.) 3.9ms (typ.) 5V±5% , 12V±5% 5V±5% , 12V±5% 5V±5% , 12V±5% 13.06W (typ.) 13.06W (typ.) 13.06W (typ.) 0.044 0.089 0.18 J I F Height 26.1mm (max.) 26.1mm (max.) 26.1mm (max.) Width 101.6mm 101.6mm 101.6mm Depth 147.0mm (max.) 147.0mm (max.) 147.0mm (max.) Weight 0.8kg (max.) 0.8kg (max.) 0.8kg (max.) Average seek time (read) Average seek time (write) Supply Voltage Allowable Voltage Power consumption Low power Idle Energy Consumption Efficiency /Category name Dimension Temperature Operating Non-Operating 5 to 55°C 5 to 55°C 5 to 55°C -40 to 70°C -40 to 70°C -40 to 70°C Vibration/Shock Vibration (op) Vibration (non-op) Shock (op) Shock (non-op) 0.6mm (5 to 20Hz) 0.6mm (5 to 20Hz) 0.6mm (5 to 20Hz) 9.8m/s2 (1G) [20 to 300Hz] 3.1mm (5 to 20Hz) 9.8m/s2 (1G) [20 to 300Hz] 3.1mm (5 to 20Hz) 9.8m/s2 (1G) [20 to 300Hz] 3.1mm (5 to 20Hz) 49m/s2 (5G) [20 to 300Hz] 49m/s2 (5G) [20 to 300Hz] 49m/s2 (5G) [20 to 300Hz] 2 2 637.4m/s (65G) [2ms duration] 637.4m/s (65G) [2ms duration] 637.4m/s2 (65G) [2ms duration] 2,451.7m/s2 (250G) [2ms duration] 2,451.7m/s2 (250G) [2ms duration] 2,451.7m/s2 (250G) [2ms duration] Acoustics Idle (ave.) 3.6Bels (typ.) 3.6Bels (typ.) 3.6Bels (typ.) *Energy Consumption Efficiency: Energy consumption efficiency is calculated based on power consumption divided by formatted capacity, as defined by Japanese law. *Definition of Capacity: TOSHIBA defines a megabyte(MB) as 1,000,000bytes, and a gigabyte(GB) as 1,000,000,000 bytes.