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IT Support & Hardware · Foundational

SATA Power Connector

A 15-pin L-shaped PSU connector that supplies 3.3 V, 5 V, and 12 V to SATA drives.

Definition

SATA power replaced the 4-pin Molex for drives and supports hot-plug. It carries 3.3 V, 5 V, and 12 V. Adapters from Molex to SATA exist but low-quality molded adapters can be a fire hazard.

Example

Connect the PSU's SATA power lead to a 2.5-inch SSD next to its 7-pin data cable.

Exam tip

SATA power is 15 pins; SATA data is 7 pins.

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