In addition, the WD My Book Thunderbolt Duo has a 7200 RPM rotation speed and a varying transfer rate, depending on the file type. The unit supports HDD drive types and has a form factor of an external RAID drive.
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KESU HDD 2.5" Portable External Hard Drive 2tb/1tb/500gb/750gb USB3.0 disk memory for PC tablets PS4 notebook Desktop Computer
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UnionSine Portable External Hard Drive 500gb/1tb/2tb memory USB HDD Storage Device Hard disk removable Desktop Notebook Computer
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UnionSine HDD 2.5 Inch Portable External Hard Drive 250GB 320GB 500GB 1TB USB3.0 Storage Compatible for PC Mac Desktop MacBook
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