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Final Functional specifications
Hitachi Travelstar 5K1000 (HTS541010A9E680) - Four 2.5" Hard Drives From 500 GB To 1 TB, Benchmarked | Tom's Hardware
HGST Travelstar 5K1000 HTS541010A9E680 (0J22413) 1TB 5400 RPM 8MB Cache SATA 6.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive - Newegg.com