Seagate Exos X18 16TB enterprise-class hard drive from the flagship X-class lineup — built for demanding 24/7 server, NAS, and data center workloads. These drives were manufactured in 2023 and stored in original factory sealed anti-static bags and still under manufacturer's 5-year warranty. 

Key Specs:

• Capacity: 16TB
• Interface: SAS 12Gb/s (SAS III)
• Speed: 7200 RPM
• Cache: 256MB
• Form Factor: 3.5" LFF
• Sector Format: FastFormat 512e/4Kn
• Transfer Rate: Up to 261 MB/s
• MTBF: 2.5 million hours
• Workload Rating: 550TB/year
• Warranty: 5-year limited (Seagate)

Features:

• Helium-sealed design for lower power draw, reduced weight, and superior leak protection
• PowerBalance and PowerChoice for optimized power management
• Digital environmental sensors for real-time internal condition monitoring
• CMR (Conventional Magnetic Recording) — no SMR write penalty concerns
• Seagate Secure support for AES-256 encryption and safe drive retirement
• Compatible with distributed file systems including Hadoop and Ceph

Ideal for: Servers, SANs, RAID arrays, NAS enclosures, hyperscale cloud, backup/archive, and any application requiring high-capacity, enterprise-grade reliability.

⚠️ Note: This is a SAS drive — requires a SAS HBA or SAS-capable backplane. Not compatible with standard SATA-only controllers or desktop PCs.