Pinouts >  ATX, WTX and other standard and proprietary power supply (PSU) cables connectors
15 pin Molex 67581-0000 SATA power connector layout
15 pin Molex 67581-0000 SATA power connector
Serial ATA specifies a fifteen-pin power connector. Slimline connector with six pins is used for some small form-factor applications.

Molex 67581-0000 used for cable connector and Molex 67582-0000  used for terminals connector.

The SATA standard specifies a power connector sharply differing from those used by PATA drives and many other computer components. It is wafer-based, 15-pin shape. The seemingly large number of pins are used to supply three different voltages — 3.3 V, 5 V, and 12 V.

Each voltage is supplied by three pins ganged together (and 5 pins for ground). This is because the small pins cannot supply sufficient current for some devices. One pin from each of the three voltages is also used for hotplugging. The same physical connections are used on 3.5-inch and 2.5-inch notebook  hard disks.

Pin Signal Description PSU Color Wire
1 +3.3VDC 3.3 V Power orange
2 +3.3VDC 3.3 V Power orange
3 +3.3VDC Enter/exit Power Disable (PWDIS) mode
(3.3 V Power, Pre-charge prior to SATA 3.3)
4 GND Ground black
5 GND Ground black
6 GND Ground black
7 +5VDC 5 V Power, Pre-charge red
8 +5VDC 5 V Power red
9 +5VDC 5 V Power red
10 GND Ground black
11 Optional Staggered spinup/activity black
12 GND Ground black
13 +12VDC 12 V Power, Pre-charge yellow
14 +12VDC 12 V Power yellow
15 +12VDC 12 V Power yellow

Pins 3,7,13 are pre-charge.

Pin 11 can be used for activity indication and/or staggered spin-up. If pulled down at the connector (as it is on most cable-style SATA power connectors), the drive spins up as soon as power is applied.

Pins 1, 2, and 3 are optional as well, as evidenced by some adapter cables that connect the drives to older PSUs. These are usually Y-adapters that have the four-pin drive connector on the other end. Currently, SATA drives rarely use 3.3 volts. That may be because there are too many people using adapters so the drive makers don't want the headaches which come with using 3.3 volts. But in the future, 3.3 volt drives may become common so you need to be careful when using SATA power cables which don't implement 3.3 volts.


15 pin Molex 67582-0000 SATA plug connector layout
15 pin Molex 67582-0000 SATA plug connector
According to 44 reports in our database (41 positive and 2 negative) the SATA power connector pinout should be correct.

Is this pinout
SATA power connector visual pinout:click to enlarge
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