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, 
  
 | Lenovo 41N3015 (250 GB)$63.00 to $90.00
 
  
  Lenovo extends its line of outstanding hard drive upgrade options with the 250GB Serial ATA (S-ATA) Hard Disk Drive (HDD) for selected models of Lenovo ThinkCentre systems.
 
  	Manufacturer:Lenovo		 Product MPN   MPN | 41N3015 | Key Features   Capacity | 250 GB |  Interface | Serial ATA | Enclosure    | Internal | HDD Form Factor    | 3.5" x 1/3H (Low Profile) | Spindle Speed    | 7200 RPM | Technical Features   Special Features | S.M.A.R.T Technology | External Data Transfer Rate    | 300 MBps | Seek Time    | 9 ms |  Buffer Size | 8 MB |  Average Latency | 4.17 ms | Interface (Detailed)    | Serial ATA II | Other Features  Platform    | PC |  Package Qty. | 1 | Dimensions   Height | 1.02 in. |  Width | 4.02 in. |  Depth | 5.79 in. |  Weight | 1.41 lb. | Warranty   Warranty | 3 Years | Miscellaneous   UPC | 882861237036 |  
 
 Tags:lenovo, 41n3015, 250, gb, 
  
 | BUSlink CipherShield CSC-250-U2 (250 GB)$246.00 to $427.00
 
  
  Buslink's 3.5 inch desktop hard drives feature high capacities and provide USB 2.0. Pre-formatting saves time and assures 100% quality control. All Buslink external desktop hard drives feature a metal alloy case that dissipates heat. AC adapter, Connecting cables and drivers included.
 
  	Manufacturer:BUSlink		 Product MPN   MPN | CSC-250-U2 | Key Features   Capacity | 250 GB |  Interface | USB | Enclosure    | External | Spindle Speed    | 7200 RPM | Technical Features   Security Features | Kensington Security Lock | External Data Transfer Rate    | 60 MBps |  Buffer Size | 2 MB |  Average Latency | 4.17 ms | Interface (Detailed)    | USB 2.0 | Other Features   Compliant Standards | Plug and Play | Platform    | PC |  Package Qty. | 1 | Dimensions   Height | 1 in. |  Width | 5.38 in. |  Depth | 8.25 in. |  Weight | 4.75 lb. | Warranty   Warranty | 1 Year | Miscellaneous   UPC | 677891128443 |  
 
 Tags:buslink, ciphershield, csc-250-u2, 250, gb, 
  
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WD Scorpio 2.5-inch drives offer fast performance and low power consumption, making them ideal for notebooks and other portable devices.

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.

The BUSlink USB 2.0 Ultra Slim Disk-On-the-Go-Lite Hard Drive is smaller, lighter, faster, and provides a quick, easy solution for storage. The BUSlink Disk-on-the-Go-Lite Hard Drive is Plug and Play, so installation is a snap. You can be using your BUSli

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.