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,
| IBM 39M4530 (500 GB)$174.00 to $496.00

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.
Manufacturer:IBM Product MPN MPN | 39M4530 | Key Features Designation | Desktop Computer | Capacity | 500 GB | Interface | Serial ATA | Enclosure | Internal | HDD Form Factor | 3.5" | Spindle Speed | 7200 RPM | Technical Features External Data Transfer Rate | 300 MBps | Buffer Size | 16 MB | Average Latency | 4.17 ms | Interface (Detailed) | Serial ATA | Hot Swap | Yes | Other Features Platform | PC | Package Qty. | 1 | Dimensions Height | 0.6 in. | Width | 2.76 in. | Depth | 4.39 in. | Weight | 0.5 lb. | Miscellaneous UPC | 000435910479 |
Tags:ibm, 39m4530, 500, gb,
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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.

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.

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.

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.