We no longer carry Seagate Constellation.2 ST91000640SS - hard drive - 1 TB - SAS 6Gb/s (2271498), but we found this replacement for you.
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Get a reliable storage solution in a small form factor with the Seagate Enterprise Capacity HDD. This 2.5-inch form factor internal hard drive lets you add enterprise storage without the need to expand the data center. With Serial Attached SCSI 3 interface, it provides a data transfer rate of 1.2 Gb/s for enhanced data integrity and fast data access. Features like Background Media Scan (BMS), Idle Read After Write (IRAW), Low Halogen, PowerChoice and more add to the utility of this 1 TB hard disk.