Overview     General specifications

Deskstar 7K400 hard disk drives specifications

Deskstar 7K400 models Capacity (GB) RPM Interface HDS724040KLAT80 400 7200 Parallel-ATA HDS724040KLSA80 400 7200 Serial-ATA       Configuration Parallel-ATA Serial-ATA       Interface ATA Ultra/133 Serial ATA 1.5Gb/s Capacity (GB)1 400 Data heads (physical) 5/10       Performance     Data buffer2 8 MB Rotational speed (RPM) 7,200 Media transfer rate (max. Mbits/sec) 757 Interface transfer rate (max. MB/sec) 100 150 Sustained data rate (MB/sec) 61.4 -29.8 (zone 0-29) Seek time average, (read, typical (MS))3 8.5       Reliability     Error rate (non-recoverable) 1 in 10E14 Start/stops (at 40° C) 50,000       Acoustic     Idle (Bels) 3.1       Power     Requirement +5 VDC (+/- 5%), +12 VDC (+10%/-8%) Dissipation     Startup current (max. A) 2.0 (+12V) & 1.1 (+5V) 2.0 (+12V) & 1.2 (+5V) Idle (W) 9.0 9.6       Physical size     Height (mm) 25.4 Width (mm) 101.6 Depth (mm) 146 Weight (max. g) 700       Environmental characteristics     Operating     Ambient temperature 5° to 55° C Relative humidity (non-condensing) 8% to 90% Shock (half sine wave, 2ms) 55G Vibration (random (RMS) 0.67G for horizontal, 0.56G for vertical       Non-operating     Ambient temperature -40° to 65° C Relative humidity (non-condensing) 5% to 95% Shock (half sine wave, 2ms) 225G Vibration (random (RMS) 1.04G rms (XYZ)

¹ GB equals one billion bytes when referring to hard drive capacity; accessible capacity may be less.

² Buffer capacity includes 271 KB used for drive firmware.

³ Includes command overhead.