(3.3 V Power, Pre-charge prior to SATA 3.3) The same physical connections are used on 3.5-inch and 2.5-inch notebook hard disks. One pin from each of the three voltages is also used for hotplugging. This is because the small pins cannot supply sufficient current for some devices. The seemingly large number of pins are used to supply three different voltages - 3.3 V, 5 V, and 12 V.Įach voltage is supplied by three pins ganged together (and 5 pins for ground).
_(2)__96578_zoom.jpg "download free sata power pinout")
The SATA standard specifies a power connector sharply differing from those used by PATA drives and many other computer components. Molex 67581-0000 used for cable connector and Molex 67582-0000 used for terminals connector.
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