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I need an adapter for transferring files between my SSD and my laptop (Dell Latitude E7440). Will there be a difference in performance with a power cable? Will one without a power cable be reliable for an SSD? What about if I use it for an HDD?

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What's the difference between a USB 3.0 to SATA III adapter with an AC power supply and one without?

The difference would be that the former device (with external power) will more likely to operate with almost any USB host system (and also handle HDD and SSD), while the latter will fail on many of them, especially on power-limited mobile devices like laptops.

Ale..chenski
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