WD Red Plus WD40EFRX 3.5" 4TB 64MB 5400RPM CMR NAS HDD

Product Specifications Device Type Hard drive - internal Capacity 4 TB Form Factor 3.5" x 1/3H Interface SATA 6Gb/s Buffer Size 64 MB Features Native Command Queuing (NCQ), IntelliPower, Advanced Format technology, NAS compatible, NASware technology, 3D Active Balance Plus , S.M.A.R.T. Width 101.6 mm Depth 147 mm Height 26.1 mm Weight 680 g Drive Transfer Rate 600 MBps (external) Internal Data Rate 150 MBps MTBF 1,000,000 hour(s) Non-Recoverable Errors 1 per 10^14 Load / Unload Cycles 600,000 Interfaces 1 x SATA 6 Gb/s - 7 pin Serial ATA Compatible Bays 1 x internal - 3.5" x 1/3H Power Consumption 4.5 Watt ( read ) ¦ 4.5 Watt ( write ) ¦ 3.3 Watt ( idle ) ¦ 0.4 Watt ( sleep ) Compliant Standards RoHS Service & Support 3 years warranty Service & Support Details Limited warranty - 3 years Min Operating Temperature 0 °C Max Operating Temperature 65 °C Shock Tolerance 65 g @ 2ms (operating) / 250 g @ 2ms (non-operating) Sound Emission 25 dBA Designed For WD My Cloud EX2 ¦ WD My Cloud EX4 Storage Capacity WD Red WD40EFRX - hard drive - 4 TB - SATA 6Gb/s Type Hard drive - internal Protocols & Specifications 4 TB Package Content SATA 6Gb/s Data Transfer Rate 600 MBps System Requirements Details 64 MB Dimensions (WxDxH) 101.6 mm x 147 mm x 26.1 mm Manufacturer Warranty 3 years warranty Cache 64MB

From the manufacturer

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