Hewlett Packard 395473-B21 (500 GB)$110.00 to $605.00
 
  
  Hard Drive Spindle Speed - 7200Rpm Hard Drive Type - Hot-swap Hard Drive Capacity - 500GB Hard Drive Interface Type - Serial ATA Form Factor - 3.5''
 
  	Manufacturer:Hewlett Packard		 Product MPN   MPN | 395473-B21 | Key Features   Capacity | 500 GB |  Interface | Serial ATA | Enclosure    | Internal | Spindle Speed    | 7200 RPM | Technical Features  External Data Transfer Rate    | 150 MBps |  Average Latency | 4.17 ms | Interface (Detailed)    | Serial ATA |  Hot Swap | Yes | Other Features  Platform    | PC |  Package Qty. | 1 | Warranty   Warranty | 1 Year | Miscellaneous   UPC | 882780029781 |  
 
 Tags:hewlett, packard, 395473-b21, 500, gb, 
  
 | Hewlett Packard PV944UT (160 GB)$69.00 to $122.00
 
  
  Serial ATA NCQ Hard Drives maximize performance by providing faster data transfer speeds, better system cooling airflow, more bandwidth, more headroom for speed increases in future generations and better data integrity.
 
  	Manufacturer:Hewlett Packard		 Product MPN   MPN | PV944UT | Key Features  Designation    | Desktop Computer |  Capacity | 160 GB |  Interface | Serial ATA | Enclosure    | Internal | Spindle Speed    | 7200 RPM | Technical Features  Internal Data Transfer Rate    | 2,400 Mbit/s | External Data Transfer Rate    | 300 MBps |  Average Latency | 4.17 ms | Interface (Detailed)    | Serial ATA | Other Features  Platform    | PC |  Package Qty. | 1 | Dimensions   Width | 4 in. |  Depth | 1 in. |  Weight | 2.2 lb. | Warranty   Warranty | 1 Year | Miscellaneous   UPC | 882780713437 |  
 
 Tags:hewlett, packard, pv944ut, 160, gb, 
  
 | Hewlett Packard 431944-B21 (300 GB)$249.00 to $750.00
 
  
  ?Serial Attached SCSI is the logical evolution of SCSI, including its long-established software advantage and the Serial ATA electrical and physical connection interface. SAS meets all these demands while providing the highest performance.
 
  	Manufacturer:Hewlett Packard		 Product MPN   MPN | 431944-B21 | Key Features  Designation    | Desktop Computer |  Capacity | 300 GB | Enclosure    | Internal | HDD Form Factor    | 3.5" x 1/3H (Low Profile) | Spindle Speed    | 15000 RPM | Technical Features  External Data Transfer Rate    | 300 MBps | Seek Time    | 3.5 ms |  Average Latency | 2 ms | Interface (Detailed)    | SAS |  Hot Swap | Yes | Other Features  Platform    | PC |  Package Qty. | 1 | Dimensions   Height | 1 in. |  Width | 4 in. | Warranty   Warranty | 3 Years | Miscellaneous   UPC | 0882780637726 |  
 
 Tags:hewlett, packard, 431944-b21, 300, gb, 
  
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Cool-running, quiet operation, superior performance and industry-leading reliability make the WD Caviar SE drives the perfect hard drives for desktop and enterprise storage.

The My Book Studio Edition (Model WDH1Q3200N) offers 320B of storage, quad interface, and a high-speed interface that makes it perfect for creative professionals and video editors.

Compaq hard disk drives undergo an intense qualification process that eliminates data integrity problems, firmware and O/S incompatibilities, and other causes of data corruption or premature failure. Compaq hard disk drives are specifically designed and tested for flawless operation in your equipment. Supply your server, workstation or notebook with a Compaq hard disk drive and you will prevent incompatibilities that can rob your system of performance or cause you to lose valuable data. Minimize

This hot-swap Serial ATA hard disk drive offers 500GB of storage capacity in a single drive.  The 3.5" form factor and hot swap capability allow for replacing the hard disk drive without shutting the server down first.