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Description: Ships: Price:
250GB Western Digital Caviar 7200RPM 2MB Cache IDE / ATA 3.5" Hard Drive (mfr p/n WD2500BB). System Pulls, Not Used/Deployed, Backed by 90 Day OWC Warranty. (WDGWD2500BA) Same Day $47.99
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WD Caviar®
EIDE Hard Drive
250GB, 2 MB Cache, 7200 RPM


The latest generation of Western Digital’s award-winning WD Caviar Enhanced IDE (EIDE) hard drive family features new firmware innovations to achieve 80 GB per platter. Spinning at 7200 RPM and offering capacities as large as 250 GB, the latest WD Caviar hard drives combine the high performance and increased areal density required by today’s capacity-hungry applications.

Product Features

Reliability — We understand the importance of your data, and we are committed to protecting that data with exceptionally reliable products, advanced data protection technology and superior customer support.

Cool — Keeping the drive cool enhances reliability. WD continues to develop new and innovative ways to keep drives cool while they are operating.

Quiet — The technology that Tom's Hardware Guide called "very fast and nearly silent" is used throughout this family of drives. Our WhisperDrive™ technology minimizes noise to levels near the threshold of human hearing. To cut seek noise, SoftSeek™ technology streamlines read/write seeking algorithms, resulting in more efficient operation.

Compatible — We perform tests on hundreds of systems and a multitude of platforms in our FIT Lab™ and Mobile Compatibility Lab to give our customers confidence that our drives will work in their systems.

 

Specifications

Performance Specifications
Transfer Rates
Average Seek 8.9 ms average
Average Latency 4.2 ms (nominal)
Rotational Speed 7200 RPM (nominal)
Data Transfer Rate (maximum) 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)
Buffer To Disk 2MB
   
   
Physical Specifications
Formatted Capacity 250,059 GB
Capacity 250GB
Interface 40-pin EIDE
Actuator Type Rotary Voice Coil
Bytes Per Sector 512
Servo Type Embedded
Head Park Automatic
User Sectors Per Drive 488,397,168
   
   
Physical Dimensions
English
Height 1.028 Inches (Max)
Length 5.787 Inches (Max)
Width 4.00 Inches (± 0.010 inch)
Weight 1.32 Pounds
   
Metric
Height 25.4 mm (Max)
Length 147 mm (Max)
Width 101.6 mm
Weight 0.60 kg
   
   
Environmental Specifications
Shock
Operating Shock (Read) 65 G, 2 ms (read); 20 G, 2 ms (write)
Non-operating Shock 250 G, 2 ms
   
Acoustics
Idle Mode 30 dBA (average)
Seek Mode 0 32 dBA (average)
Seek Mode 3 31 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 5-85% 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 0.004 g²/Hz (10 to 300 Hz)
Non-operating 0.05 g²/Hz (10 to 300 Hz)
 
Operating
Linear 5-500 Hz, 0.25 G (0 to peak)
Random 0.004 g²/Hz (10 to 300 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 350 mA
Idle 340 mA
Standby 25 mA
Sleep 25 mA
   
5 VDC
Read/Write 630 mA
Idle 610 mA
Standby 190 mA
Sleep 80 mA
   
Power Dissipation
Read/Write 7.5 Watts
Idle 7.1 Watts
Standby 1.30 Watts
Sleep 0.70 Watts
 
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