Robust. Ready. Scalable. Designed specifically for the NAS storage solutions of creative professionals and medium to large enterprises. The IronWolf Pro is engineered for reliable performance in environments with consistently demanding workloads. It is designed to deliver high performance in commercial and enterprise multi-user, multi-application, multi-bay NAS storage solutions. Entire portfolio with CMR All IronWolf Pro hard drives use conventional magnetic recording (CMR) for consistent, best-in-class NAS performance. Up to 20 TB A wide range of high-capacity solutions enable scalable and cost-effective storage. Robust IronWolf Pro disks offer a workload rating of 550 TB/year. This enables organisations and businesses to seamlessly store, share and collaborate on large networked volumes of data on NAS systems.