$90.61

Western Digital Purple 4TB, SATA 6Gb/s, 5400 RPM, 3.5" HDD

$171.00

WD Purple 6TB, SATA 6Gb/s, 5400 RPM, 3.5" HDD

$235.23

WD Purple Pro 8TB, SATA 6Gb/s, 5400 RPM, 3.5" HDD

$280.40

WD Purple Pro 12TB, SATA 6Gb/s, 7200 RPM, 3.5" HDD