Western Digital Serial ATA (SATA II), SE 3.5" Internal Hard Drive 750GB, 7200 RPM, 16MB Cache
SATA Hard Drives
750 GB, 1.2 million hours MTBF, 16 MB Cache, 7200 RPM
1.2 million hours MTBF. Best-in-class vibration tolerance. 5-year limited warranty. Just three of the reasons why WD RE2 drives are the world's most reliable
SATA drives.
Performance Specifications
Rotational Speed 7,200 RPM (nominal)
Buffer Size 16 MB
Average Latency 4.20 ms (nominal)
Start/Stop Cycles 50,000 minimum
Seek Times
Read Seek Time 8.9 ms
Write Seek Time 9.6 ms (average)
Track-To-Track Seek Time 0.6 ms (average)
Full Stroke Seek 21.0 ms (average)
Transfer Rates
Buffer To Host (Serial ATA) 3 Gb/s (Max)
Buffer To Disk 70 MB/s (Sustained)
Physical Specifications
Formatted Capacity 750,156 MB
Capacity 750 GB
Interface SATA 3 Gb/s
User Sectors Per Drive 1,465,149,168
Physical Dimensions
English
Height 1.028 Inches (Max)
Length 5.787 Inches (Max)
Width 4.00 Inches (+/- 0.010 inch)
Weight 1.61 Pounds
Metric
Height 26.1 mm (Max)
Length 147 mm (Max)
Width 101.6 mm
Weight 0.73 kg
Environmental Specifications
Rohs Compliant
Shock
Operating Shock (Read) 65G, 2 ms
Non-operating Shock 250G, 1 ms
Acoustics
Idle Mode 28 dBA (average)
Seek Mode 0 34 dBA (average)
Temperature (English)
Operating 41° F to 131° F
Non-operating -40° F to 149° F
Temperature (Metric)
Operating 5° C to 55° C
Non-operating -40° C to 65° C
Humidity
Operating 5-95% RH non-condensing
Non-operating 5-95% RH non-condensing
Altitude (English)
Operating -1,000 feet to 10,000 feet
Non-operating -1,000 feet to 40,000 feet
Altitude (Metric)
Operating -305M to 3,050M
Non-operating -305M to 12,200M
Vibration
Operating
Linear 20-300 Hz, 0.75G (0 to peak)
Random 10-300 Hz, 0.008 g² / Hz
Non-operating
Low Frequency 5-20 Hz, 0.195 inches (double amplitude)
High Frequency 20-500 Hz, 4.0G (0 to peak)
Electrical Specifications
Current Requirements
12 VDC
Read/Write 500 mA
Idle 470 mA
Standby 6 mA
Sleep 6 mA
5 VDC
Read/Write 700 mA
Idle 700 mA
Standby 180 mA
Sleep 180 mA
Power Dissipation
Read/Write 9.50 Watts
Idle 8.90 Watts
Standby 0.97 Watts
Sleep 0.97 Watts
SATA Hard Drives
750 GB, 1.2 million hours MTBF, 16 MB Cache, 7200 RPM
1.2 million hours MTBF. Best-in-class vibration tolerance. 5-year limited warranty. Just three of the reasons why WD RE2 drives are the world's most reliable
SATA drives.
Performance Specifications
Rotational Speed 7,200 RPM (nominal)
Buffer Size 16 MB
Average Latency 4.20 ms (nominal)
Start/Stop Cycles 50,000 minimum
Seek Times
Read Seek Time 8.9 ms
Write Seek Time 9.6 ms (average)
Track-To-Track Seek Time 0.6 ms (average)
Full Stroke Seek 21.0 ms (average)
Transfer Rates
Buffer To Host (Serial ATA) 3 Gb/s (Max)
Buffer To Disk 70 MB/s (Sustained)
Physical Specifications
Formatted Capacity 750,156 MB
Capacity 750 GB
Interface SATA 3 Gb/s
User Sectors Per Drive 1,465,149,168
Physical Dimensions
English
Height 1.028 Inches (Max)
Length 5.787 Inches (Max)
Width 4.00 Inches (+/- 0.010 inch)
Weight 1.61 Pounds
Metric
Height 26.1 mm (Max)
Length 147 mm (Max)
Width 101.6 mm
Weight 0.73 kg
Environmental Specifications
Rohs Compliant
Shock
Operating Shock (Read) 65G, 2 ms
Non-operating Shock 250G, 1 ms
Acoustics
Idle Mode 28 dBA (average)
Seek Mode 0 34 dBA (average)
Temperature (English)
Operating 41° F to 131° F
Non-operating -40° F to 149° F
Temperature (Metric)
Operating 5° C to 55° C
Non-operating -40° C to 65° C
Humidity
Operating 5-95% RH non-condensing
Non-operating 5-95% RH non-condensing
Altitude (English)
Operating -1,000 feet to 10,000 feet
Non-operating -1,000 feet to 40,000 feet
Altitude (Metric)
Operating -305M to 3,050M
Non-operating -305M to 12,200M
Vibration
Operating
Linear 20-300 Hz, 0.75G (0 to peak)
Random 10-300 Hz, 0.008 g² / Hz
Non-operating
Low Frequency 5-20 Hz, 0.195 inches (double amplitude)
High Frequency 20-500 Hz, 4.0G (0 to peak)
Electrical Specifications
Current Requirements
12 VDC
Read/Write 500 mA
Idle 470 mA
Standby 6 mA
Sleep 6 mA
5 VDC
Read/Write 700 mA
Idle 700 mA
Standby 180 mA
Sleep 180 mA
Power Dissipation
Read/Write 9.50 Watts
Idle 8.90 Watts
Standby 0.97 Watts
Sleep 0.97 Watts
Western Digital 750GB Sata Hard Drive
High Capacity Enterprise-class 24x7 Reliability
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