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SKU 34322

Western Digital HD WD3200JB Internal 3.5-inch 320GB ATA100 7200rpm 8MB 1-inch Height Bulk

WD, the first to introduce an 8 MB buffer, has advanced the caching algorithms of this new and improved Caviar family of hard drives, resulting in next-generation high performance performance that matches the speed of most 16 MB cache drives.Heat is a major contributor to hard drive wear, and cool drive operating temperatures help increase long-term drive reliability. WD achieves the lowest operating temperature of any hard drive in its class, including slower drives spinning at 5,400 RPM, by lowering the drives power consumption through advanced design of electronics and firmware.Todays PCs, digital video recorders and gaming machines are increasingly operated in environments where noise is less tolerated. WD minimizes WD Caviar noise to levels virtually below the threshold of human hearing with its WhisperDrive technology, which features a highly efficient power driver design. And to cut seek noise, Soft Seek technology streamlines read/write seeking algorithms, resulting in the drive operating more efficiently when accessing and writing data.


Vendor: Western Digital
MPN: WD3200JB
Key Features
Spindle Speed - 7200 RPM
Cache/Buffer Size - 8 MB
Interface Type - ATA 100
Average Latency - 4.2ms
Form Factor - 3.5"-internal
Average Seek Time - 8.9ms
Dimensions WxDxH - 5.787" x 4" x 1.028"
Weight - 1.35 lb
Formatted Capacity - 320 GB
Detail Specifications
Rotational Speed - 7,200 RPM (nominal).
Buffer Size - 8 MB.
Average Latency - 4.20 ms (nominal).
Contact Start/Stop Cycles - 50,000 minimum.
Read Seek Time (Average) - 8.9 ms.
Write Seek Time (Average) - 10.9 ms (average).
Track-To-Track Seek Time - 2.0 ms (average).
Full Stroke Seek - 21.0 ms (average).
Buffer To Disk - 748 Mbits/s (Max).
Buffer to Host (EIDE) -
Mode 5 Ultra ATA - 100.0 MB/s.
Mode 4 Ultra ATA - 66.6 MB/s.
Mode 2 Ultra ATA - 33.3 MB/s.
Mode 4 PIO - 16.6 MB/s.
Mode 2 multi-word DMA - 16.6 MB/s.
Number of Heads (Physical) - 6.
Formatted Capacity - 320,072 MB.
Capacity - 320 GB.
Interface - EIDE.
Actuator Type - Rotary Voice Coil.
Number of Platters - 3.
Bytes Per Sector - 512.
User Sectors Per Drive - 625,142,448.
Servo Type - Embedded.