Seagate Constellation ES.3 4TB 3.5" SAS 6Gb/s 7200RPM Enterprise Hard Drive (ST4000NM0023)

Seagate Constellation ES.3 4TB 3.5" SAS 6Gb/s Enterprise Hard Drive

The Seagate Constellation ES.3 is a purpose-built enterprise hard drive designed to meet the relentless growth of unstructured data in modern datacenters. Delivering up to 4TB of capacity on a 6Gb/s SAS interface with 7200 RPM performance and a 128MB cache buffer, it provides predictable, high-throughput bulk data storage for 24/7 server and storage array environments — even in the most vibration-intensive multi-drive SAS or SATA enclosures.

Best-in-class energy efficiency keeps power and cooling costs low, while PowerChoice™ Technology enables configurable power states for further TCO optimization. The optional SED FIPS 140-2 configuration provides government-grade hardware encryption for data-at-rest protection and simplified drive disposal. Ramp Load Technology keeps heads off the disk surface during power-down, extending drive longevity. RoHS compliant and backed by a 5-year warranty.

Key Features

• 6Gb/s SAS Interface — Dual-port enterprise connectivity for high-availability storage arrays
• 4TB Capacity — Maximum density for server and storage solutions
• 7200 RPM / 4.16ms Avg Latency — Predictable performance in multi-drive environments
• PowerChoice™ Technology — Configurable power states for best-in-class energy efficiency
• SED FIPS 140-2 Option — Government-grade encryption for data-at-rest protection and easy drive retirement
• RAID Rebuild Support — Faster array recovery to minimize downtime
• Ramp Load Technology — Heads never touch disk surface, reducing wear and extending lifespan
• Secure Erase — Fast, compliant drive sanitization for repurposing or disposal
• RoHS Compliant — Environmentally responsible design
• 5-Year Warranty — Seagate's enterprise-grade coverage

Technical Specifications

• Capacity: 4TB
• Interface: SAS (6Gb/s)
• Form Factor: 3.5"
• Spindle Speed: 7200 RPM
• Cache Buffer: 128MB
• Average Latency: 4.16ms
• Max External Transfer Rate: 6,144 MB/s (48 Gbit/s)
• Weight: 1.54 lb
• Dimensions: 5.8" x 4" x 1"
• Part Number: ST4000NM0023
• Warranty: 5 Years
• Device Support: Server, Storage System, SAN, RAID Array