WD Purple Pro WD181PURP - hard drive - 18 TB - SATA 6Gb/s - WD181PURP - Internal Hard Drives - CDW.com
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WD Purple Pro WD181PURP 18 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method
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Seagate 18TB Exos X18 7200 RPM SATA 6Gb/s 256MB Cache 3.5-Inch Enterprise Hard Drive HDD (ST18000NM000J) - Newegg.com
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