WD CAVIAR 4000AAKB 400GB PATA 16MB 7200

General Rotational Speed 7,200 RPM (nominal) Buffer Size 16 MB Average Latency 4.20 ms (nominal) Contact Start/Stop Cycles 50,000 minimum Seek Times (Average) Read Seek Time (Average) 8.9 ms Write Seek Time (Average) 10.9 ms (average) Track-To-Track Seek Time 2.0 ms (average) Full Stroke Seek 21.0 ms (average) Transfer Rates Buffer To Host (Serial ATA) 150 Mbits/s (Max) Buffer To Disk 748 Mbits/s (Max) Capacity 400 GB Interface EIDE Actuator Type Rotary Voice Coil Number of Platters 3 Bytes Per Sector 512 User Sectors Per Drive 625,142,448 Servo Type Embedded
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