Digital Storage Capacity: 3TB / 4TB /10TB/12TB/ 16TB/ 18TB. Cache Size:4TB / 6TB / 8TB / 10TB/ 12TB/ 16TB / 18TB. - Capacity: 500GB 1TB 2TB. Portable mini size with large storage capacity, is ideal for transferring or backing up files, and easy to carry around or take with you in back pocket or sling bag.
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