Western Digital 1TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD11PURZ. Product Title WD Purple 1 TB Hard Drive - Internal - SATA [SATA/600] (WD11PURZ). Supports up to 180 TB/yr workload rate(3) | (3) Workload Rate is defined as the amount of user data transferred to or from the hard drive.
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