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HP Smart Buy 500GB 7200rpm SATA (NCQ/Smart IV) 6Gbp/s Hard Drive - QK554AT


HP Serial ATA Hard Drives maximize the performance of HP Business PCs by providing the technologies to meet your increasing storage demands with high-capacity drives offering superior reliability and performance.   Learn more about the product
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eCOST Part#: 8570001
Mfr Part#: QK554AT
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Platform: PC
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UPC:0718659337292
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HP Serial ATA Hard Drives maximize the performance of HP Business PCs by providing the technologies to meet your increasing storage demands with high-capacity drives offering superior reliability and performance.

Serial ATA provides faster data transfer speeds, better system cooling airflow, more bandwidth, more headroom for speed increases in future generations and better data integrity. A next-generation technology, Serial Advanced Technology Attachment (SATA) interface connects hard drives to the PC platform enabling easy aggregation of multiple hard drives into a single PC. This offers you the additional benefits of dedicated bandwidth, the ability to more easily identify device failures and scalability.

HP Serial ATA 6.0-Gb/s Hard Drives offer data transfer rates of up to 6 Gb per second doubling your interface speed over SATA 1.5-Gb/s Hard Drives.

SMART IV technology

Self Monitoring Analysis and Reporting Technology (SMART) hard drive technology is allows hard drives to monitor their own health and to raise flags if imminent failures are predicted. If the drive determines that a failure is imminent, the SMART hard drive technology enables the intelligent manageability or management software to generate a fault alert. While the current versions of SMART hard drives do a good job monitoring the data on the hard drive media, the ever increasing emphasis on reliability and quality has promoted HP to implement SMART IV technology which constantly checks that the data flow from host interface to media and media to host interface is not compromised. This is accomplished by inserting a 2 byte parity code into every 512 byte block in the data path of the hard drive's Cache RAM. This unique parity checking performed by HP's SMART IV technology hard drives, allows for more complete error detection coverage encompassing the entire data path between the host and the hard drive.
Smart IV is also known as IOEDC: I/O Error Detection Code.

Native Command Queuing

NCQ or Native Command Queuing, is a SATA protocol extension that allows the hard drive to have several write or read commands outstanding at the same time. In contrast, normal non-queued operation requires each command to be completed before the next command is issued by the host system. Queuing allows the drive to complete the commands in the order that allows for best overall throughput. It also involves an advanced method of transferring data to or from the host, called First Party Direct Memory Access (FPDMA), that allows the hard drive and the host controller to manage the data transfers for multiple outstanding commands, without involving the host processor. NCQ can contribute to better performance but the results are dependent on many factors, including the access patterns of the various applications and operating system functions that are initiating drive accesses. Enabling NCQ features in the hard drive requires AHCI support from the host system BIOS, controller, and driver. AHCI support is typically implemented in RAID configurations.

Benefits

HP Serial ATA 6.0-Gb/s Hard Drives brings these powerful benefits for storage solution
  • Improved protocol for enhanced data integrity
  • Enhanced security prevents access to user data until one or two user-defined passwords are provided
  • Performance increase to up to 3 Gb/s and 6Gb/s maximum external (burst) data transfer rate
  • Thinner and smaller serial cables and connectors for easy routing and improved system cooling
  • SMART IV technology constantly checks that the data flow from host interface to media and media to host interface is not compromised.
  • Native Command Queuing allows the hard drive to have several write or read commands outstanding at the same time
  • Maximum cable length increased from 1.5 feet to 1 meter (3.28 feet) for increased design and layout flexibility in a system
General
Device Type Hard drive
Capacity 500 GB
Interface Serial ATA-600
Features Native Command Queuing (NCQ)
Performance
Spindle Speed 7200 rpm
Expansion & Connectivity
Interfaces 1 x Serial ATA-600
Compatibility Information
Designed For HP 1155 ¦ HP Point of Sale System rp5800 ¦ HP Compaq 6200 Pro
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HP Smart Buy 500GB 7200rpm SATA (NCQ/Smart IV) 6Gbp/s Hard Drive (QK554AT)

HP Serial ATA Hard Drives maximize the performance of HP Business PCs by providing the technologies to meet your increasing storage demands with high-capacity drives offering superior reliability and performance.

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