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WD Caviar 40 GB 3.5 Internal Hard Drive 1 of 5
WD Caviar 40 GB 3.5 Internal Hard Drive 2 of 5
WD Caviar 40 GB 3.5 Internal Hard Drive 3 of 5
WD Caviar 40 GB 3.5 Internal Hard Drive 4 of 5
WD Caviar 40 GB 3.5 Internal Hard Drive 5 of 5
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Description
 

Product Details:

Mfg Part#: WD400BD
Sku: 201643981
UPC: 718037719702
UPC 14: 00718037719702
See more in Internal
 
WD Caviar SATA hard drives are designed for mainstream desktop personal computers. They feature a fast 7200 RPM spindle speed, a 2 MB cache buffer, and up to 250 GB of storage. WD Caviar drives are built to the highest standards of quality and reliability by people who understand the importance of your data.
Features
Video Features Fast - 7200 RPM, 2 MB cache buffer
Video Features SATA - up to 3 Gb/s burst transfer rates.
Video Features Quiet - Fluid Dynamic Bearing (FDB) technology - Less friction means more reliability; less heat, vibration, and noise.
Tech Specs
Tech Specs Performance Specifications
Tech Specs Buffer To Host (Serial ATA): 3 Gb/s (Max)
Tech Specs Transfer Rate (Buffer To Disk): 748 Mbits/s (Max)

Tech Specs Physical Specifications
Tech Specs Formatted Capacity: 40,020 MB
Tech Specs Capacity: 40 GB
Tech Specs Interface: SATA 3 Gb/s
Tech Specs User Sectors Per Drive: 78,165,360

Tech Specs Physical Dimensions
Tech Specs Height: 1.028 Inches (Max)
Tech Specs Length: 5.787 Inches (Max)
Tech Specs Width: 4.00 Inches (+/- 0.010 inch)
Tech Specs Weight: 1.60 Pounds

Tech Specs Environmental Specifications
Tech Specs Shock
Tech Specs Operating Shock (Read): 65G, 2 ms
Tech Specs Non-operating Shock: 350G, 2 ms

Tech Specs Acoustics
Tech Specs Idle Mode: 30 dBA (average)
Tech Specs Seek Mode: 0 32 dBA (average)
Tech Specs Seek Mode: 3 31 dBA (average)

Tech Specs Temperature
Tech Specs Operating: 41° F to 131° F
Tech Specs Non-operating: -40° F to 149° F

Tech Specs Humidity
Tech Specs Operating 5-95% RH non-condensing
Tech Specs Non-operating 5-95% RH non-condensing

Tech Specs Altitude
Tech Specs Operating: -1,000 feet to 10,000 feet
Tech Specs Non-operating: -1,000 feet to 40,000 feet

Tech Specs Vibration
Tech Specs Operating Linear: 10-300 Hz, 3.0G (0 to peak)
Tech Specs Operating Random: 10-300 Hz, 0.008 g² / Hz

Tech Specs Electrical Specifications
Tech Specs 12 VDC (Read/Write): 450 mA
Tech Specs 12 VDC (Idle): 470 mA
Tech Specs 12 VDC (Standby): 23 mA
Tech Specs 12 VDC (Sleep): 23 mA
Tech Specs 5 VDC (Read/Write): 800 mA
Tech Specs 5 VDC (Idle): 750 mA
Tech Specs 5 VDC (Standby): 330 mA
Tech Specs 5 VDC (Sleep): 200 mA
Tech Specs Power Dissipation (Read/Write): 12.80 Watts
Tech Specs Power Dissipation (Idle): 9.50 Watts
Tech Specs Power Dissipation (Standby): 1.90 Watts
Tech Specs Power Dissipation (Sleep): 1.30 Watts
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