Technical Snapshot

The Seagate Exos M 32TB SAS is an enterprise-class 3.5" hard disk drive designed for demanding server and data center workloads. Spinning at 7,200 RPM with a 512 MB cache buffer, it delivers sustained transfer rates up to 275 MB/s over a SATA 6Gb/s interface. The drive is rated for 550 TB/year workload with a 2,500,000 hours MTBF, backed by Seagate's enterprise reliability engineering. With 32TB of raw storage capacity, it is suited for file servers, RAID arrays, backup infrastructure, and high-capacity storage deployments. Part of the Seagate Exos M product line.

Use Case
Enterprise file servers, RAID arrays, data center storage
Compatibility
Standard 3.5" drive bay, SATA 6Gb/s interface
Category
Enterprise Hard Disk Drive — Seagate Exos M
Seagate Exos M 32TB SAS
Seagate HDD
Seagate Exos M

Exos M 32TB SAS

SATA 6Gb/s · 3.5" · 7,200 RPM · 512 MB · 32TB

Total raw storage capacity of the drive.
Capacity 32TB
Rotational speed of the disk platters. Higher RPM provides faster sequential and random I/O performance.
RPM 7,200
On-drive DRAM buffer for caching frequently accessed data and optimizing read/write operations.
Cache 512 MB
Annual workload rating. Enterprise drives support sustained 24/7 heavy use in server and NAS environments.
Workload 550 TB/year
MPNST32000NM004K
EAN8719706437141
CategoryHard Disk Drives
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Drive Specifications

Form Factor3.5"
InterfaceSATA 6Gb/s
RPM7,200 RPM
Cache512 MB
Sustained Transfer Rate275 MB/s
Workload Rating550 TB/year
MTBF2,500,000 hours
Power (Idle)5.5W
Power (Operating)9.0W

Full Specifications

Data sourced from Seagate product specifications
Drive
SeriesExos M
Capacity32TB
Form Factor3.5"
InterfaceSATA 6Gb/s
RPM7,200 RPM
Cache512 MB
Performance
Sustained Transfer Rate275 MB/s
Workload Rating550 TB/year
Reliability
MTBF2,500,000 hours
Power (Idle)5.5W
Power (Operating)9.0W
Product
BrandSeagate
SegmentEnterprise
MPNST32000NM004K
EAN8719706437141
Physical
Weight0.77 kg
Package Dimensions49.53 x 29.21 x 21.59 cm

Support & Downloads

Seagate Exos M 32TB SAS Firmware UpdateLatest firmware · Check Seagate support
Seagate Support →
Seagate Exos M 32TB SAS DatasheetPDF · Technical specifications
Seagate Support →
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Frequently Asked Questions

Is the Exos M 32TB SAS compatible with my NAS?

Yes, the Seagate Exos M 32TB SAS uses a standard SATA 6Gb/s interface and 3.5" form factor, compatible with any NAS that accepts 3.5" SATA drives. It is widely supported by Synology, QNAP, TrueNAS, and Unraid systems. The 550 TB/year workload rating makes it suitable for always-on NAS environments.

Can I use the Exos M 32TB SAS in a RAID array?

Yes. The Seagate Exos M 32TB SAS is designed for RAID deployments. Its 550 TB/year workload rating and 2,500,000 hours MTBF ensure reliability in RAID 5, RAID 6, RAID 10, and ZFS configurations. Enterprise and NAS drives include error recovery features (TLER/ERC) for RAID controller compatibility.

What does the 550 TB/year workload rating mean?

The workload rating indicates the maximum annual data transfer the drive supports while maintaining stated reliability. 550 TB/year means the drive supports approximately 1.5 TB of data transfer per day, suitable for busy file servers and multi-user environments.

How fast is the Exos M 32TB SAS?

The Seagate Exos M 32TB SAS spins at 7,200 RPM with a 512 MB cache buffer, delivering sustained transfer rates up to 275 MB/s. This is optimal for sequential workloads like large file transfers and backup operations.

How much power does the Exos M 32TB SAS consume?

The Seagate Exos M 32TB SAS draws 9.0W under operating load and 5.5W at idle. For multi-drive configurations, factor these values into your power budget — a 12-drive array would consume approximately 108W under load.

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