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Hi guys, I want to know if an esata to sata cable will suffice to use an internal HD or does it require to have also a power source for the HD to run and be usable in my laptop (gateway p-7805u). Thanks in advance
You need power as well. Some external 2.5" drives can use power from USB ports or else You need external power supply.
Yep - the SATA /eSATA connection does not supply any power to the drive.