WD Green 4TB 3.5" Internal Hard Drive, IntelliPower, SATA 6 Gb/s Interface

WD Green 4TB

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WD Green 4TB 

Top Rated Gear: WD Green 4TB 3.5" Internal Hard Drive, IntelliPower, SATA 6 Gb/s Interface Drive Type: Hard Disk Drive (HDD), Interface: Serial ATA (SATA)

Works as advertised. I chose the WD green because of higher reliability. Warranty is 2 years. I use as an external backup HDD for my MacBook Air connected via a USB dual docking station by  Startech. Make sure the dock supports 4TB drives other wise when formatting the HDD will show only 2TB if that is what your dock supports.  I chose the Startech dual dock with clone capability supporting 4TB @ 7200 RPM. In future I can fit another HDD in the 2nd dock slot. 
The WD came right up and easily formatted albeit tardy because of its large capacity.  It's very quiet.  I invested in this larger drive for the long term. It's less expensive in the long term. No additional software needed.

WD Green 4TB 3.5" Internal Hard Drive, IntelliPower, SATA 6 Gb/s Interface

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