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SATA (Serial ATA) is a computer interface that connects storage devices like hard drives, SSDs, and optical drives to the motherboard, providing faster speeds and more efficient cables than older PATA technology. It uses a serial communication method, sending data one bit at a time over a single data line.

Key characteristics

Function: Connects storage devices to a computer's motherboard.

Technology: Uses a serial, rather than parallel, connection, which allows for higher data transfer rates and uses smaller cables.

Replaced: Replaced older PATA (Parallel ATA) technology, which suffered from slower speeds and bulky ribbon cables.

Compatibility: Supports both internal and external connections (eSATA) and has been developed through multiple revisions (SATA I, II, III, etc.) to increase speeds over time.

What it's used for

Internal storage: Connects internal hard disk drives (HDDs) and solid-state drives (SSDs) to a computer's motherboard.

Optical drives: Connects CD/DVD drives to the motherboard.

RAID configurations: Used to combine multiple drives into a single unit for better performance or data protection.