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Western Digitial

10,000 RPM Raptor

Used | OWC Tested

Mac / PC / SATA
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.
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.
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.

150GB Western Digital Caviar SE Specifications:


Form Factor
3.5″ HDD
EIDE 100 MB/s
Formatted Capacity2
Rotational Speed
10,000 RPM
Cache / Data Buffer
Manufacturer Model Number


Height (max)
25.4mm (1.028″)
Width (max)
101.6mm (4.00″)
Length (max)
147mm (5.787″)
Weight (typical)
0.63kg (1.39 lbs.)
Guaranteed Sectors


Contact Start-Stops
40,000 minimum


Transfer Rate (Max)
100 MB/s
Track-to-track Seek
Average Latency


Read Power
7.5 Watts
Write Power
7.5 Watts
Idle Mode
7.5 Watts
Standby Mode
0.7 Watts
Sleep Mode
0.7 Watts

Environmental (Operating)

65 G max at 2ms
Ambient Temperature (°F)
32°F to 140°F
Ambient Temperature (°C)
0°C to 60°C
20-300 Hz, 0.75 G (0 to peak)
Relative Humidity (non-condensing)
5% to 95%
-1,000 feet to 10,000 feet

Environmental (Non-Operating)

350 G max at 2ms
Ambient Temperature (°F)
-40°F to 149°F
Ambient Temperature (°C)
-40°C to 65°C
300-500 Hz, 5.0G (0 to peak)
Relative Humidity (non-condensing)
5% to 95%
-1,000 feet to 40,000 feet


Idle (Typical)
3.4 bels
Seek (Typical)
3.6 bels
  1. 1GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less). The actual total capacity will depend on your own defined file settings/preferences.
  2. In terms of standard gigabytes, 1GiB ≈ 1.074GB and refers to the actual formatted capacity of shown under Mac OS 10.5 or earlier and Microsoft Windows OS.
  3. Specific application environments such as temperature and duty cycle will affect the overall reliability rates.
Manufacturer provided specifications for Western Digital p/n WD1500ADFD
Western Digitial 150GB 10,000 RPM Raptor Mfr P/N: WD1500ADFD OWC SKU: WDGWD1500ADFDU 150GB Western Digital "Raptor" 10,000 RPM 16MB Cache Serial ATA (SATA) Hard Drive – The ultimate in SATA performance! 90 Day OWC Fulfilled Limited Warranty
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