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Silver 3.5-inch bare hard drive with exposed circuit board and SATA connectors

Seagate

Seagate Exos M ST30000NM004K 30TB 7200 RPM 512MB SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-ECN3-K58ZK MPN ST30000NM004K

A 30 TB, 7200 RPM SATA enterprise hard drive with 512 MB cache and 3 TB-per-platter density for hyperscale storage

  • Total capacity30 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Flash memory typeHard Drive
  • Rotational speed7,200 RPM

Model 30TB Exos M

  • Massive 30TB capacity fits in standard 3.5-inch bays
  • 7200 RPM spindle speed supports fast sequential throughput
  • 512MB cache buffers heavy random workloads
  • 3TB-per-platter areal density maximizes space efficiency
  • SATA 6.0Gb/s interface integrates with existing enterprise arrays

Enterprise Storage Drive

The Seagate Exos M ST30000NM004K is a 30TB 3.5-inch internal hard drive built for enterprise storage workloads. It operates at 7200 RPM with a 512MB cache over a SATA 6.0Gb/s interface. The drive uses breakthrough areal density of 3TB per platter to deliver massive capacity in a standard form factor. It targets hyperscale cloud, big-data applications and high-density RAID arrays.

Upgrade From Lower-Capacity Spindles

This drive replaces multiple lower-capacity 7200 RPM SATA drives when a single 30TB unit simplifies the storage topology. The jump is worth it when rack space, power budget or drive-count limits make consolidation necessary. Mozaic 3+ technology blends 90% proven components with new areal-density gains for 3× power efficiency per terabyte. Average latency remains 4.16ms for predictable enterprise performance.

Verify SATA Infrastructure First

Confirm the host system provides a SATA 6.0Gb/s port and sufficient 3.5-inch drive bays with 26.10mm height clearance. The bare-drive packaging means no cables, brackets or mounting screws are included. Ensure the RAID controller or backplane supports drives of this capacity and the 147.00mm length. Power and cooling must match the sustained enterprise duty cycle.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $511.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 30 TB
Higher than about 99% of the 2,372 comparable items (median 2 TB).
Price per TB $17.07 per TB
Cheaper than about 94% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineExos M
Model nameST30000NM004K
Total capacity30 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Flash memory typeHard Drive
Cache memory512 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.85 mm
Maximum length147 mm
Shipping weight0.68 kg
Package size147 × 102 × 25 mm

Other versions of this model

5 more in the same range

Questions about this item

Will the 26.10mm height fit my standard 3.5-inch drive bay?

Yes, the 26.10mm height matches the standard 3.5-inch form factor used in most desktop cases and server chassis.

Do I need a special SATA cable or controller for the 6.0Gb/s interface?

Use a standard SATA 6.0Gb/s data cable and ensure your motherboard or HBA port supports SATA III to get full speed.

How often should I check the 7200 RPM drive's health in a RAID array?

Monitor SMART attributes monthly and run a full surface scan quarterly to catch early sector errors before they affect the array.

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