wd3200aajs → Обява 50490572

The Western Digital WD3200AAJS is a 3.5-inch internal hard disk drive (HDD) that was part of the Caviar Blue series. Here's a breakdown of its specifications and features, along with information about the Caviar Blue lineup:

WD3200AAJS Specifications:

• Capacity:320 GB.[1][2][3]
  

• Interface:SATA 3.0Gb/s (also referred to as SATA II).[1][4]
  

• Rotational Speed:7200 RPM.[1][2]
  

• Cache Buffer:8MB.[1][2]
  

• Form Factor:3.5-inch.[1][4]
  

• Average Latency:4.2 ms (nominal).[1][5]
  

• Average Seek Time:8.9 ms.[1][6]
  

• Data Transfer Rate (Buffer to Host):Up to 300 MB/s.[1]
  

• Non-recoverable Read Errors:<1 in 1014 bits read (this can vary slightly, another source states 1 per 10^15).[6][7]
  

• Load/Unload Cycles:300,000.[7]
  

Key Features of the WD3200AAJS and Caviar Blue Series:

• Solid Performance:Designed for reliable performance in desktop computers.[5]
  

• Cool and Quiet Operation:Western Digital emphasized technologies to keep the drives cool and minimize noise.[4][5][8] This includes:
  

  • WhisperDrive™ technology:Minimizes noise to levels near the threshold of human hearing.[4][8]
    

  • SoftSeek™ technology:Streamlines read/write seeking algorithms for more efficient and quieter operation.[4][8]
    

• NoTouch™ Ramp Load Technology:The recording head never touches the disk media, ensuring less wear to the head and media, and better drive protection during transit.[5][8]
  

• IntelliSeek™:Calculates optimum seek speeds to lower power consumption, noise, and vibration.[5][8][9]
  

• ShockGuard™:Protects the drive against damage from bumps and vibrations while it's running.[5][8]
  

• Data Lifeguard™:An exclusive set of data protection features, including shock protection, an environmental protection system, and real-time embedded error detection and repair.[8]
  

• Compatibility:Western Digital performed extensive testing on hundreds of systems and platforms to ensure compatibility.[4][5][8]
  

• Native Command Queuing (NCQ):Optimizes the order in which received read and write commands are executed.[4][9]
  

Western Digital Caviar Blue Lineup:

• Target Audience:The WD Caviar Blue line was generally aimed at mainstream users for everyday computing, offering a balance of performance and reliability at an affordable price.[8][10][11]
  

• Positioning:It was considered the "default" or standard consumer drive offering from Western Digital.[11]
  

• Capacity Range:The Caviar Blue series offered a wide range of capacities over time, from as low as 40GB up to 1TB or even higher in later iterations.[5][8][12] The WD3200AAJS with 320GB fits within this range.[7]
  

• Cache Options:Caviar Blue drives were available with different cache sizes, typically ranging from 2MB to 16MB, with larger caches generally yielding better performance.[4][8] The WD3200AAJS has an 8MB cache.[4]
  

• Interface Evolution:While the WD3200AAJS is a SATA 3.0Gb/s drive, the Caviar Blue line has seen drives with both PATA (Parallel ATA) and various generations of SATA interfaces.[5][10]
  

• Consolidation:At one point, Western Digital consolidated its popular WD Caviar SE16, WD Caviar SE, and WD Caviar drives under the WD Caviar Blue umbrella.[8]
  

• Color-Coded System:Western Digital later implemented a color-coded system for its hard drives to help consumers choose the right drive for their needs (Blue for mainstream, Green for energy efficiency, Black for performance, Red for NAS, Purple for surveillance, Gold for enterprise).[11][13] The Caviar Blue was the precursor to the modern WD Blue drives.
  

Additional Notes on the WD3200AAJS:

• The label on your drive indicates a manufacturing date of April 17, 2011.
  

• It was produced in Malaysia.
  

• The drive uses a standard SATA power and data connector.
  

• The jumper settings shown are for factory configurations and typically not needed for standard SATA operation where Master/Slave is not a concept like in PATA drives. The note about "jumpered pins 3 and 4 enable PUIS (Power Up In Standby)" refers to a feature that allows the drive to power up in a low-power standby mode, waiting for a command to spin up, which can save energy in some systems.
  

The WD3200AAJS was a reliable workhorse drive for its time, suitable for general desktop use.