Sata (and adapter) questions

SO, I fix the family computers for cost,and in exchange, and keep the leftovers as payment.

I have a few hard drives lying around, and want to shuffle some data from here to there, and decided to find an easier solution than taking the boards out of my external enclosures to hook up to the donor drives.

I was looking at this and got to thinking.... where does it power the sata device? I've not really messed about with too many sata drives, and am unfamiliar with them outside of throwing one in a usb enclosure.

So what gives? I see pinouts saying the smaller side is the data connector, and the longer row is power. What about the aforementioned adapter? how does it power sata devices. or 3.5 ide devices? I'm assumnig it doesn't and needs an external power supply.
I'm also emailing the seller, but don't expect much from them.

 

What you're linking to looks like this:

See:
Bytecc USB 2.0 to IDE/SATA Adapter at Memory Express


Without the required power cable.

The product above (while not picturing it...) allows you to plug the 4 pin power plug into an old IDE drive or plug it into the device and power the HDD via the SATA connectors.


Without the power cable, some drives will work and some won't. It may be as simple as buying a compatible power adaptor - but that is too much work for me (to track down).

While I used the Bytecc for a few years mostly successfully - do note that it could not get all drives to connect to a computer (other devices could with the same 'faulty' HDD).

Buyer beware.