Can you plug a SATA III SSD notebook hard drive into a SATA II connector?

The question is already up. I would like to connect a 2.5 "SATA III SSD notebook disk in a somewhat older notebook with a SATA2 slot. Does that work if you neglect the lower data throughput? I only got that with the SSD because these disks no longer have any mechanics that is always on and needs electricity without access. Maybe the battery will last longer than "only" 1 hour.

Can you just be that the speed changes.

Yes no problem SATA is upwards or downwards compatible.

However, SATA II is only half the speed, which is why the hard drive could deliver the data somewhat slower. SSDs are slowed down at SATA II in any case.

Thanks for the fast information:-)

I already wrote that speed is of secondary importance. I was primarily interested in a longer battery life or energy saving.

Thanks for the answer, but I'm not necessarily concerned with speed (is not a gaming notebook), but with endurance (longer battery life).

Should be possible but that time will also shift a little there.

I think that a hard drive without mechanical parts uses less power because it doesn't have a constantly running motor. And this means the battery lasts longer. The data throughput should still be a bit faster than with normal SATA disks (because of the direct access).

Yes, the SATA connector is backward compatible.

It is basically the same connection, only that SATA III allows a higher data rate.