This listing is for 1 usedSeagate Exos X18 18TB ST18000NM004J 7.2K RPM SAS 12Gb/s 512e 3.5" Enterprise HDDThese drives are in good working condition, and have been tested. All drives give a 100% health check in Hard Drive Sentinel. They also have *extremely* low accumulated stop-start cycles, all are under 20, and under 1000 accumulated load-unload cycles They were removed from a working NAS chassis so all have similar Date of manufacture and cycles, and are ready to be put to use in your NAS or other application.Drives are used, but guaranteed to be functional. They have been stored in anti static bags, and will be shipped in anti static bags.I have 24 drives available, the 4th photo is all pairs of drives so you can see all the drives and serial numbers.You will receive one of these pictured drives.I buy and sell computer and audio visual equipment and offer a 30 day return policy so buy with confidence!Orders over 750$ will require a signature on delivery.Product DescriptionKey Features

• Model: Seagate Exos X18 ST18000NM004J -- 18TB 3.5-inch Enterprise Hard Drive with SAS 12Gb/s Interface.
• Interface: SAS 12Gb/s for high-performance enterprise storage and server environments.
• Performance: 7200 RPM spindle speed with sustained data transfer rate up to 270 MB/s for fast data throughput.
• Reliability: 2.5 million hours MTBF and 550 TB/year workload rating, designed for 24×7 operation in data centers.
• Cache: 256 MB cache ensures smooth read/write performance in heavy workload applications.
• Advanced Format: 512e sector format for compatibility with modern enterprise systems.
• Power Efficiency: PowerChoice and PowerBalance features help optimize power consumption for reduced operating costs.

Applications

• Enterprise servers and data centers requiring massive capacity and consistent performance.
• Cloud storage systems and scalable storage arrays.
• Backup, archiving, and disaster recovery solutions needing high data reliability.
• High-capacity SAN and NAS systems with SAS infrastructure.
• Enterprise storage applications that demand high throughput and durability under continuous load.

Fully Tested - may show minor SMART attributes from enterprise use. Capacity and performance unaffected.