this post was submitted on 17 Dec 2025
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Those adapters supply 5v power from the USB port, but SATA adapters capable of running hard drives usually have an external 12v power brick, as most full size hard drives need 12v for the drive motor.
Now, that said, I think a lot of 2.5inch hard drives do use 5 volt only and might boot up fine from an SSD SATA adapter. It's worth trying your existing adapter as is and seeing if it starts and recognizes the drive.