Model HC550. Storage Capacity 18TB. Interface SAS, SAS 12Gb/s. SAS 12Gb/s NOT Compatible w/ Desktop PCs. Seagate Exos X18 16TB ST16000NM004J 7.2K RPM SAS 12Gb/s 3.5" Enterprise HDD. Seagate Enterprise Capacity v7 12TB ST12000NM0127 SATA 6Gb/s 3.5" 512e SED HDD.
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