Description: This Power Over eSATA to SATA 22pin cable enables you to connect your 25 or 35 SATA HDD externally to any free Power Over eSATA (eSATAp) port. The Power Over eSATA port combines eSATA and USB and enables the power supply of 5V via the integrated USB interface. Thus you do not require any additional power supply for a 25 HDD. For operation of a 35 HDD just connect the Molex-connector to a power supply. Note: For 35" HDD > Connect power supply ! For 25" HDD > Don´t connect power supply; Specification Connection: Power Over eSATA (eSATAp) > SATA 22pin + 4pin Molex Voltage: 12V Cable length: 50cm; System requirement Notebook or PC with a free Power Over eSATA port