"SMART Verified Perfect Health: The drive has been fully screened using smartctl under TrueNAS. It shows zero reallocated sectors, zero pending sectors, and zero hardware errors.PRODUCT OVERVIEWThis listing is for a used Seagate Exos X20z 18TB enterprise-class 3.5" internal hard drive (Model: ST18000NM013J). This is a specialized Dual-Mode HSMR (Hybrid Shingled Magnetic Recording) enterprise drive. It currently functions as a standard 18TB CMR drive out of the box, but can be managed by host software to utilize a 20TB SMR configuration.
KEY DETAILS & SPECIFICATIONS• Brand: Seagate (Exos X18 Series)• Model / MPN: ST18000NM013J• Serial Number: ZR56TTX2• Capacity: 18TB (18,000,207,937,536 bytes)• Form Factor: 3.5-inch Internal Drive• Interface: SATA III (6.0 Gb/s)• Rotation Speed: 7200 RPM• Cache: 256 MB• Recording Technology: HSMR• Sector Size: 512 bytes logical / 4096 bytes physical
CONDITION NOTE• Drive Status: Pre-owned and fully operational.• Testing: Pulled from a working enterprise environment. A SMART health check has been performed via smartctl—all core attributes pass, SMART support is enabled, and the drive functions exactly as intended.
WHAT IS INCLUDED• 1x Seagate Exos X18 18TB 3.5" Hard Drive (ST18000NM013J)• Shipped in an anti-static ESD bag surrounded by heavy-duty protective bubble packaging.IMPORTANT BUYER COMPATIBILITY NOTICE• This is an enterprise HSMR drive.• It is recommended for advanced users, enterprise servers, data centers, or Linux environments equipped to manage host-managed or hybrid SMR technologies.• Please verify your hardware, OS, and controller compatibility before purchasing. Standard consumer desktop OS environments or basic plug-and-play NAS devices may require specific configuration tools (such as Seagate SeaChest) to utilize this drive properly.