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WD Purple WD10PURX 1TB Surveillance 3.5" Internal SATA Hard Drive
HGST Ultrastar 7K2 1TB 3.5” SATA3 HDD-T1TB-HUS722T1TALA604 Internal Hard Drive
Seagate ST1000DM003 1TB 7200RPM 3.5" SATA 6Gb/s Desktop Drive
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ST1000DM003) 1TB 3.5″ 7200RPM SATA Hard Drive - iMac 27″ A1419
WD Blue 1 TB Hard Drive HDD 3.5" SATA 6Gb/s 64 MB Cache 7200RPM WD10EZEX | eBay