Seagate IronWolf 12TB 3.5" SATA 7200 RPM 256MB Cache accessory

12 TB NAS Hard Drive

This 12 TB Seagate IronWolf drive is built for multi-user network attached storage enclosures with up to 8 bays. It targets small business and personal NAS deployments that need high capacity and sustained throughput for file sharing and backup workloads.

Capacity and Headroom

The drive provides 12 TB of storage and a 256 MB cache to accelerate frequent read and write operations. Sequential transfers reach up to 240 GB/s write and 180 MB/s read, while the 7200 RPM spindle speed keeps latency low; the rated operating temperature maximum is 65 °C.

SATA 6 Gb/s Interface Limit

The SATA 6 Gb/s link caps sustained throughput at the interface level, so the drive cannot exceed that bus bandwidth regardless of internal media speed. Builders needing higher peak bandwidth or lower latency than SATA allows should consider alternative interface technologies.