Western DigitalWD Blue WD10JPVX - Hard Disk SATA III 1 TB 2,5" 5400 RPM 8 MB CACHE. Western Digital WD Blue WD10JPVX - Hard Disk SATA III 1 TB 2.5" 5400 RPM 8 MB CACHE. Differently from many other disks of this capacity and size it is a CMR disk (not SMR), so it is not affected by slowdowns in the event of prolonged random writing.
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