1T 2.5 SATA HDD ST91000640NS WF12F 09KW4J - Replacement Drive

Replacement 1T 2.5 SATA hard drive, model ST91000640NS. Also identified by WF12F and 09KW4J. Designed as a direct-fit swap for systems that use 2.5 SATA drives; OEM model identifiers included to ensure compatibility.