SATA — Serial ATA
Definition
A serial interface protocol for connecting storage devices to a host, originally designed for consumer storage but widely used in cost-optimized enterprise storage.
Context & Usage
SATA is the lower-cost alternative to SAS — single-port (no dual-path redundancy), half-duplex (not full-duplex like SAS), and limited to 6 Gb/s. Used extensively in archive/backup tier storage, file servers, and cost-sensitive deployments. NL-SAS drives offer SATA-class capacity with SAS interface for better backplane compatibility.
Examples
- Samsung 870 EVO 4 TB SATA SSD
- Western Digital Red Pro 18 TB SATA HDD
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