42D0638 Technical Specifications
IBM 42D0637 42D0639 300 GB 10K RPM 2.5″ SAS Hard Drive
Spindle Speed: 10000RPM
Data Transfer Rate: 6GBps
Hard Drive Capacity: 300GB
Interface Type: Serial Attached SCSI 2 (SAS-2)
Size : 2.5 Inch
Interface : SAS
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42D0638 IBM 42D0637 42D0639 300 GB 10K RPM 2.5″ SAS Hard Drive
$170
Spindle Speed: 10000RPM
Data Transfer Rate: 6GBps
Hard Drive Capacity: 300GB
Interface Type: Serial Attached SCSI 2 (SAS-2)
Size : 2.5 Inch
Interface : SAS

The latest generation 15K RPM Enterprise Hard Disk Drives (MBA Series) continue to represent some of the fastest enterprise 3.5-inch hard disk drives in the industry. Leveraging our technology expertise and heritage, we deliver reliable, high-capacity HDDs for your customer’s most demanding storage applications.

Quiet – In a notebook drive, silence is golden. WD’s exclusive WhisperDrive™ combines state-of-the-art seeking algorithms to yield one of the quietest 2.5-inch hard drives on the market. These algorithms also optimize the way a drive seeks for data, which significantly improves power consumption. So now silence (and longer battery life) is golden.
Reliable and Rugged – WD’s ShockGuard™ technology protects the drive mechanics and platter surfaces from shocks. WD’s SecurePark ™ parks the recording heads off the disk surface during spin up, spin down and when the drive is off. This ensures the recording head never touches the disk surface resulting in improved long term reliability due to less head wear, and improved non-operational shock tolerance.

Seagate Momentous Thin hard drives offer feature-rich, slim, lightweight style at price and capacity points that enable no-compromise designs for thin computing. Featuring the world’s first 7mm z-height (compared to a traditional laptop hard drive with a z-height of 9.5mm), 2.5-Inch form factor drive plus Seagate Smart Align technology, provides a transition to 4K sectors without the need for software utilities. Seagate’ has purpose-built the Momentous Thin hard drive to meet our customers’ demand for affordable, slimmer, fully functional computing solutions.

The Western Digital 500GB Scorpio Blue 2.5″ Internal Hard Drive is designed for use in portable computing solutions, and features a 3 Gbps SATA interface, 5400 RPM rotational speed, and 8 MB buffer size. It can transfer data at speeds up to 3 Gbps (buffer to host) and 136 MB/s (host to drive). In addition, the hard drive offers 5.5 ms average latency and 4 sec average ready time.
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