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,
| Apricorn A25-USB-160 (160 GB)$68.00 to $132.00

The Aegis Portable 2.5" hard drive instantly adds up to 160GB of capacity which is ideal for storing, sharing or backing up your valuable data. It's the perfect companion for travel between home and the office, or for extra storage on the go.
Manufacturer:Apricorn Product MPN MPN | A25-USB-80 | Key Features Capacity | 160 GB | Interface | USB | Enclosure | External | HDD Form Factor | 2.5" | Spindle Speed | 5400 RPM | Technical Features External Data Transfer Rate | 60 MBps | Seek Time | 12 ms | Buffer Size | 8 MB | Average Latency | 5.56 ms | Interface (Detailed) | USB 2.0 | Hot Swap | Yes | Other Features Compliant Standards | Plug and Play | Platform | PC, Mac | Package Qty. | 1 | Dimensions Height | 0.75 in. | Width | 3.33 in. | Depth | 4.72 in. | Weight | 1 lb. | Miscellaneous UPC | 00708326911214 |
Tags:apricorn, a25-usb-160, 160, gb,
| IBM 39M4514 (500 GB)$230.00 to $685.00

The IBM (39M4514) 500 GB SATA Hard Drive is fully compatible with PC systems. Offering capacity as large as 500 GB
Manufacturer:IBM Product MPN MPN | 39M4514 | Key Features Capacity | 500 GB | Interface | Serial ATA | HDD Form Factor | 3.5" | Technical Features External Data Transfer Rate | 300 MBps | Interface (Detailed) | Serial ATA • Serial ATA II | Other Features Platform | PC | Package Qty. | 1 | Dimensions Height | 0.6 in. | Width | 2.76 in. | Depth | 4.39 in. | Weight | 0.5 lb. | Warranty Warranty | 1 Year | Miscellaneous UPC | 5050689910461 |
Tags:ibm, 39m4514, 500, gb,
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Hard Drive Spindle Speed - 7200Rpm Hard Drive Type - Hot-swap Hard Drive Capacity - 500GB Hard Drive Interface Type - Serial ATA Form Factor - 3.5''

Serial ATA Hard Drives maximize the performance of HP Workstations by providing the technologies to meet your increasing storage demands. These high-capacity drives offer superior reliability and performance.

Serial Attached SCSI is the logical evolution of SCSI, including its long-established software advantage and the Serial ATA electrical and physical connection interface. With enterprise storage requirements escalating and becoming more complex, factors such as larger capacity, greater density, security, scalability and accessibility are more critical than ever.Minimize

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.