Seagate Exos Mozaic 3+ X32 32TB SATA HAMR Enterprise HDD

The Seagate Exos Mozaic 3+ X32 is a 32TB enterprise hard disk drive built on Seagate's third-generation Heat-Assisted Magnetic Recording (HAMR) platform, the Mozaic 3+ architecture. Introduced in early 2025, it represents the highest available capacity point in Seagate's Exos X-series line and achieves its areal density through a combination of HAMR write technology, next-generation magnetic media, and a laser-assisted recording head that momentarily heats the disk surface to enable stable writes at densities unattainable with conventional PMR or SMR approaches. The drive uses a SATA 6 Gb/s interface and spins at 7200 RPM, targeting enterprise data center environments that require maximum storage density per rack unit.

Engineered for scale-out and high-capacity nearline workloads, the Exos Mozaic 3+ X32 is rated for a 550 TB/year workload and carries a 2.5 million hours MTBF rating, consistent with Seagate's enterprise Exos X-series positioning. The drive is designed for continuous 24×7 operation and incorporates Seagate's PowerBalance technology to optimize the tradeoff between power draw and sustained performance, along with vibration compensation features suited for dense multi-drive enclosures.

The ST32000NM000J is the SATA variant of the Mozaic 3+ X32 platform and is intended for deployment in hyperscale data centers, cloud object storage clusters, backup appliance arrays, and high-density cold or warm storage tiers. Its 32TB capacity makes it particularly relevant for organizations seeking to maximize raw storage per drive bay, reduce physical footprint, and lower per-terabyte power consumption relative to lower-capacity predecessors. Due to the novelty of HAMR at production scale and strong market demand following its 2025 Q1 launch, supply of this model has been constrained relative to demand.

Ideal for

• Hyperscale cloud object storage clusters requiring maximum raw capacity per drive bay and per rack unit
• Large-scale backup and archive appliances where high ingest throughput and high per-drive capacity reduce total drive count and infrastructure overhead
• Nearline cold and warm storage tiers in enterprise data lakes serving analytics and AI/ML training dataset repositories
• High-density NAS and scale-out file storage systems in media and entertainment environments managing large unstructured data libraries
• Software-defined storage deployments using platforms such as Ceph or MinIO where per-node raw capacity directly impacts cluster economics
• Colocation and enterprise private cloud storage nodes where physical space and power draw per terabyte are primary operational constraints

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.