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Amazon.com: HGST Ultrastar 7K4000 (0F17719) 4TB 64MB Cache 7200RPM SATA III 6.0Gb/s 3.5" Internal Desktop Hard Drive for PC, Mac, NAS, RAID, CCTV DVR (Renewed) w/1 Year Warranty : Electronics
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SanDisk Professional 4TB G-Drive Enterprise-Class External Desktop Hard Drive - 7200RPM Ultrastar HDD Inside, USB-C (10Gbps), USB 3.2 Gen 2, Mac Ready - SDPHF1A-004T-NBAAD - Newegg.com
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SanDisk Professional 18TB G-Drive Enterprise-Class External Desktop Hard Drive - 7200RPM Ultrastar HDD Inside, USB-C (10Gbps), USB 3.2 Gen 2, Mac Ready - SDPHF1A-018T-NBAAD - Newegg.com
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