Overview     General specifications

Deskstar 7K80 hard disk drives specifications

Deskstar 7K80 model summary Capacity (GB) RPM Interface
HDS728040PLAT20	40 7200 Parallel-ATA
HDS728080PLAT20	80 7200 Parallel-ATA
HDS728040PLA320	40 7200 Serial-ATA
HDS728080PLA380	80 7200 Serial-ATA
Configuration	Parallel-ATA	Serial-ATA
Interface	ATA 133	SATA 3.0Gb/s
Capacity (GB)1	80 / 40
Data heads (physical)	2 / 1
Data disks	1
Performance
Data buffer2 (MB)	2 MB	8 MB (80GB) / 2 MB (40GB)
Rotational speed (rpm)	7,200
Media transfer rate (max. Mbits/sec)	757
Interface transfer rate (max. MB/sec)	133	300
Sustained data rate (MB/sec)	61.1 - 29.6 (zone 0 - 29)
Average seek time (ms) (read, typical)3	8.8
Reliability
Error rate (non-recoverable)	1 in 10E14
Start/stops (at 40° C)	50,000
Acoustic
Idle (Bels)	2.6
Power
Requirement	+5 VDC (+/- 5%), +12 VDC (+10%/-8%)
Dissipation
Startup current (max. A)	1.72 (+12V) & 0.68 (+5V)	1.83 (+12V) & 1.00 (+5V)
Idle (W)	4.7	5.7
Physical size
Height (mm)	24.3
Width (mm)	101.6
Depth (mm)	146
Weight (max. g)	560
Environmental characteristics
Operating
Ambient temperature (C)	5° to 55°
Relative humidity (non-condensing)	8% to 80%
Shock (half sine wave, 2ms) (G)	55
Vibration (random (RMS)) (G)	0.67 for horizontal, 0.56 for vertical
Non-operating
Ambient temperature (C)	-40° to 65° C
Relative humidity (non-condensing)	5% to 95%
Shock (half sine wave, 2ms) (G)	350
Vibration (random (RMS) (G)	1.04 rms (XYZ)
RoHS compliant4	Some part numbers	Yes

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

² Buffer capacity includes 270 or less KB used for drive firmware.

³ Includes command overhead.

⁴ RoHS refers to the European Union Directive 2002/95/EC on the restriction of certain hazardous substances in electrical and electronic equipment. Refer to the Deskstar RoHS Certificate of Compliance for more information.