Don't blame the device, blame the interface. eSATA is a SATA data connection only and carries no power at all. So a USB port or a wall wart would be required to power it. I have a 2.5 inch hard drive enclosure with USB and eSATA, and when using eSATA for data, you also have to use a USB plug to power it via a DC port the device has.
I have one too and have had endless problems with it. When I transfer data there is a 50% chance that it will transfer at usb speed not at the e-sata speed. The problem is with the enclosure, so I am guessing that most are not like that.
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Don't blame the device, blame the interface. eSATA is a SATA data connection only and carries no power at all. So a USB port or a wall wart would be required to power it. I have a 2.5 inch hard drive enclosure with USB and eSATA, and when using eSATA for data, you also have to use a USB plug to power it via a DC port the device has.
I have one too and have had endless problems with it. When I transfer data there is a 50% chance that it will transfer at usb speed not at the e-sata speed. The problem is with the enclosure, so I am guessing that most are not like that.
How am I not surprised Engadget didn't know this? Hehe