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What interface does the ST8000NM0055 have

ODN and passive infrastructure knowledge brief Published 03 Nov 2025

Prepared for preliminary research by the GESTIONVAL ODN knowledge desk. Confirm network topology, split ratio, box or cabinet capacity, joint closure rating and loss budget against current standards and product documentation.

The Seagate ST8000NM0055 uses a Serial ATA III (SATA 6 Gb/s) interface.

The ST8000NM0055 is an 8 TB enterprise-class 3.5-inch hard drive that connects via Serial ATA III, also known as SATA 6 Gb/s . This interface provides a maximum data transfer rate of 600 MB/s and supports features such as Native Command Queuing (NCQ), which optimizes the order of read and write commands for improved performance in demanding applications .

Key Features of the SATA III Interface on ST8000NM0055
  • Point-to-point connection: Each drive connects directly to the host adapter, eliminating master/slave configurations typical of parallel ATA .
  • Plug-and-play installation: No jumpers or special configuration is required, simplifying setup .
  • Backward compatibility: SATA III drives can operate with SATA II or SATA I ports, though at reduced speeds .
  • Flexible cabling: Thinner and more flexible cables improve airflow and ease of installation in server or storage enclosures .
  • Emulation of parallel ATA: The drive can emulate legacy PATA behavior for software compatibility, using shadow registers to mimic Device 0 (master) behavior .

Overall, the SATA III interface ensures that the ST8000NM0055 is compatible with modern enterprise storage systems while maintaining high throughput and reliability for data-intensive workloads .

What interface does the ST8000NM0055 have - GESTIONVAL ODN INFRASTRUCTURE S.L. [PDF]

What interface does the ST8000NM0055 have

Seagate Exos 7E8 4kN 5xxE 6TB & 8TB SATA Product Manual

The Serial ATA interface cable consists of four conductors in two differential pairs, plus three ground connections. The cable size

Technical note

This reference is intended for preliminary ODN and passive infrastructure research. Topology, split ratio, box or cabinet capacity, closure rating, cable type, test limits and applicable standards must be verified for the specific project.

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