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Western Digital

WD Raptor®
SATA Hard Drives
150 GB, 1.5 Gb/s, 16MB Cache, 10,000 RPM

Used | OWC Tested

1.2 Million Hours MTBF
World's Fastest SATA Drive

Some hard drive companies design desktop-class drives with the SATA interface. To meet the demands of enterprise storage, WD is going one better. WD is the only company combining a 10,000 RPM enterprise-class mechanical platform with the SATA interface to meet all the demands of the enterprise environment—reliability, performance, and reduced cost.

WD produces the world’s most reliable SATA drives. With 1.2 million hours MTBF, enterprise duty cycle, next-generation SATA technology, and state-of-the-art vibration tolerance, WD Raptor drives offer the best combination of reliability, high capacity, and performance for enterprise applications.

Key Features

Reliable - Designed and manufactured to enterprise-class standards to provide enterprise reliability in high duty cycle environments. With 1.2 million hours MTBF, these drives have the highest available reliability rating on a high capacity drive.

Fast - With a next-generation SATA interface, 1.5 Gb/s data transfer rate, native command queuing (NCQ), and 16MB cache, these drives deliver optimum performance.

RAID-specific, time-limited error recovery (TLER) - A feature unique to WD, prevents drive fallout caused by the extended hard drive error-recovery processes common to desktop drives.

Rotary Acceleration Feed Forward (RAFF™) - Optimizes operation and performance when the drives are used in vibration-prone, multidrive systems such as rack-mounted servers or network storage.

Ideal For

  • Servers
  • network attached storage
  • scientific computing
  • video surveillance
  • enterprise backup
  • document and image management
  • digital video.




Performance Specifications
Rotational Speed 10,000 RPM (nominal)
Buffer Size 16MB
Average Latency 2.99 ms (nominal)
Start/Stop Cycles 20,000 minimum
Seek Times
Read Seek Time 4.6 ms
Write Seek Time 5.2 ms (average)
Track-To-Track Seek Time 0.4 ms (average)
Full Stroke Seek 10.2 ms (average)
Transfer Rates
Buffer To Host (Serial ATA) 1.5 Gb/s (Max)
Buffer To Disk 84 MB/s (Sustained)
Physical Specifications
Formatted Capacity 150,039MB
Capacity 150GB
Interface SATA 1.5 Gb/s
User Sectors Per Drive 293,046,768
Physical Dimensions
Height 1.028 Inches (Max)
Length 5.787 Inches (Max)
Width 4.00 Inches (± 0.010 inch)
Weight 1.81 Pounds
Height 26.1 mm (Max)
Length 147 mm (Max)
Width 101.6 mm
Weight 0.822 kg
Environmental Specifications
Operating Shock (Read) 65G, 2 ms
Non-operating Shock 250G, 1 ms
Idle Mode 29 dBA (average)
Seek Mode 0 36 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
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
Linear 10-300 Hz, 3.0G (0 to peak)
Random 10-300 Hz, 0.008 g² / Hz
Low Frequency 10-300 Hz, 0.195 inches (double amplitude)
High Frequency 300-500 Hz, 5.0G (0 to peak)
Electrical Specifications
Current Requirements
12 VDC
Read/Write 470 mA
Idle 375 mA
Standby 18.75 mA
Sleep 18.75 mA
5 VDC  
Read/Write 875 mA
Idle 938 mA
Standby 488 mA
Sleep 450 mA
Power Dissipation  
Read/Write 10.02 Watts
Idle 9.19 Watts
Standby 2.66 Watts
Sleep 2.48 Watts