Specifications for WD Scorpio^® WD800VE

Physical Specifications
Formatted Capacity 1	80,026 MB
Interface	44-pin EIDE
Actuator Type	Rotary Voice Coil
Bytes Per Sector	512
User Sectors Per Drive	156,301,488
Servo Type	Embedded
ECC	Reed Solomon
Jumper Setting Information	Four Pin Jumper Block

¹  Western Digital defines a megabyte (MB) as 1,000,000 bytes

Performance Specifications
Average Seek 1 - Read - Write	12.0 ms average 13.0 ms average
Track-to-Track Seek	2.0 ms average
Full Stroke Seek	21 ms average
Index Pulse Period	8.3 ms (nominal)
Average Latency	5.5 ms
Rotational Speed	5400 RPM
Data Transfer Rate (maximum) - Buffer to Host - Max Buffer to Disk	100 MB/s (Mode 5 Ultra ATA) 66.6 MB/s (Mode 4 Ultra ATA) 33.3 MB/s (Mode 2 Ultra ATA) 16.6 MB/s (Mode 4 PIO) 16.6 MB/s (Mode 2 multi-word DMA) 421 Mbits/s maximum
Interleave	1:1
Buffer Size	8 MB
Error Rate - Unrecoverable	<1 in 1014 bits read
Spindle Start Time - From Power-on to Drive Ready 2 - From Power-on to Rotational Speed 3	4.5s average  4.5s average
Spindle Stop Time	5.1s average
Load/Unload Cycles at Ambient Condition	600,000

¹  When measuring seek times, the average latency must be subtracted from read, write, or explicit seek commands.
²  Defined as the time from power-on to the setting of Drive Ready and Seek Complete including calibration.
³  Defined as the time from power-on to when the full spindle rotational speed is reached.

Physical Dimensions
Height	English:	0.374 inches ±0.008 inch
	Metric:	9.50 mm ±0.20 mm
Length	English:	3.94 inches ±0.010 inch
	Metric:	100.2 mm ±0.25 mm
Width	English:	2.75 inches ±0.010 inch
	Metric:	69.85 mm ±0.25 mm
Weight	English:	0.26 pounds (average)
	Metric:	117 gm (average)

Electrical Specifications
Current Requirements and Power Dissipation
Operating Mode	RMS Current 1	Power, Average 1
	5 VDC
Spinup	900 mA	4.5W
Read/Write	500 mA	2.5W
Seek	500 mA	2.5W

¹  All values are typical (25°C, and 5.0V input) except where specified as maximum.
Note: Current measurements cut off frequency at 1 kHz.

Environmental Specifications
Shock
Operating (2 ms)	250G
Non-operating (1 ms)	900G
Vibration
Operating	Sinusoidal: 5-300 Hz, 1.0g (0 to peak), 0.5 octaves/min. Random: 5-300 Hz, 0.008 g2/Hz
Non-operating	5-500 Hz, 2.0g (0 to peak), 0.5 octaves/min. 5-500 Hz, 0.05 g2/Hz (0 to peak)
Sweep Rate	0.5 octave/minute minimum
Drive Generated Vibration
Operating	0.2 gm-mm average with the drive in an unconstrained condition
Rotational Shock Non-Operating
Amplitude	30K rad/sec2
Duration	2 ms
Operating Temperature and Humidity
Temperature 1	5°C to 60°C (41°F to 140°F) on base
Humidity	8-90% RH non-condensing 29.4°C (maximum wet bulb)
Thermal Gradient	20°C/hour (maximum)
Humidity Gradient	20%/hour (maximum)
Non-Operating Temperature and Humidity
Temperature	-40°C to 65°C (-40°F to 149°F)
Humidity	5-95% RH non-condensing 40°C (maximum wet bulb)
Thermal Gradient	30°C/hour (maximum)
Humidity Gradient	20%/hour (maximum)
Altitude
Operating	-1000 feet to 10,000 feet (-305M to 3,050M)
Non-Operating	-1000 feet to 40,000 feet (-305M to 12,200M)
Acoustics
Typical Sound Power Level 2
Idle Mode 3	20 (average dBA)
Seek Mode 4, 5	21 (average dBA)
Reliability Specifications
AFR	<0.5%
Component Design Life	5 years

¹  The system environment must allow sufficient air flow to limit surface temperatures as defined.
²  Measured per ECMA-74/ISO 7779.
³  No audible pure tones.
⁴  Random seek at a rate of 26 seeks per second.
⁵  Seek mode selectable with the Automatic Acoustic Management feature.