Western Digital Red Plus 4TB WD40EFPX

Western Digital Red Plus 4TB NAS 5400 RPM SATA 6 Gb/s CMR 256 MB Cache 3.5" WD40EFPX

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Options (9)

	2TB 128 MB Cache $72.99
	6TB 128 MB Cache $309.90
	1TB 64 MB Cache $115.00
	14TB 512 MB Cache $529.67
	10TB 256 MB Cache $329.99
	4TB 128 MB Cache $297.60
	3TB 128 MB Cache $69.99
	6TB 256 MB Cache $258.36
	12TB 512 MB Cache $599.99

• Available in capacities ranging from 1-14TB(1) with support for up to 8 bays | (1) 1MB = 1 million bytes, 1GB = 1 billion bytes, and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment.
• Supports up to 180 TB/yr workload rate(2) | (2) Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred ✕ (8760 / recorded power-on hours)). Workload Rate will vary depending on your hardware and software components and configurations.
• NASware firmware for compatibility
• Built for small or medium business NAS systems in a 24/7 environment
• 3-year limited warranty(3) | (3) MTBF specifications are based on a sample population and are estimated by statistical measurements and acceleration algorithms under typical operating conditions: workload of 90TB/year and drive temperature of 40°C. Derating of MTBF will occur above these parameters, up to 65°C drive temperature. MTBF does not predict an individual drive’s reliability and does not constitute a warranty. Not all products may be available in all regions of the world.