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Rectangular silver 2.5 inch SATA SSD with black label

Seagate

Seagate Pulsar.2 ST400FM0012 2.5" SATA internal SSD

SKU CH-XBP6-S26MB MPN ST400FM0012

2.5-inch SATA solid-state drive with MLC memory delivering up to 370 MB/s read, 200 MB/s write and 15 petabytes total endurance

  • Sequential read speedUp to 370 MB/s
  • Sequential write speedUp to 200 MB/s
  • Interface typeSATA III
  • Form factor2.5 in (6.35 cm)
  • NAND flash typeMLC
  • Controller chipASICs
  • Enterprise endurance with up to 15 PB total bytes written
  • Fast sequential reads up to 370 MB/s for quick data access
  • High random read performance up to 40,000 IOPS
  • MLC memory delivers consistent performance in demanding workloads
  • Rugged design withstands 1000G shock and 0–60°C operation

Seagate Pulsar.2 2.5" SATA III MLC SSD

The Seagate Pulsar.2 ST400FM0012 is a 2.5-inch internal solid-state drive built for enterprise workloads. It uses MLC memory components and a SATA III interface to deliver consistent performance in data centre environments. The drive targets applications that demand high endurance and data integrity over long service periods.

7mm Z-Height Enterprise Build

A 7mm profile fits standard 2.5-inch drive bays in servers and storage arrays. The SATA III connector ensures broad compatibility with existing backplanes and controllers. Rated for 0°C to 60°C operation and 1000G shock resistance, the drive withstands demanding rack conditions and vibration.

Endurance Rating and Data Protection

The specification allows up to ten full drive writes per day, equating to 15 petabytes of total bytes written over the device life. On-board intelligence automatically protects against unintended data change or loss. This endurance rating supports write-intensive enterprise applications without early wear-out.

How it compares

Measured against everything we stock in Internal NVMe & SATA SSDs, at today’s prices. Recalculated every night.

Price $2,938.99
Pricier than about 92% of the 1,994 comparable items (median $180.49).
Sequential read speed Up to 370 MB/s
Lower than about 93% of the 1,180 comparable items (median 2,400 MB/s).
Sequential write speed Up to 200 MB/s
Lower than about 96% of the 1,173 comparable items (median 1,700 MB/s).

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Specifications

Product
Brand nameSeagate
Product linePulsar.2
Model nameST400FM0012
Performance
Sequential read speedUp to 370 MB/s
Sequential write speedUp to 200 MB/s
Random read (4K)Up to 40,000 IOPS
Random write (4K)Up to 15,000 IOPS
Storage
NAND flash typeMLC
Controller chipASICs
Ports & slots
Interface typeSATA III
Size & build
Form factor2.5 in (6.35 cm)
Overall height7 mm
Overall width70.1 mm
Product depth100.45 mm
Shipping weight0.27 kg
Package size152 × 127 × 51 mm
Environment & compliance
Operating temperature range0 °C to 60 °C
Storage temperature range-40 °C to 70 °C
Operating humidity range5% to 95% RH
Max shock tolerance1000G

Questions about this item

Will this 2.5-inch drive fit in my server bay?

The drive measures 7 mm tall, 70.1 mm wide and 100.45 mm deep, matching the standard 2.5-inch SATA form factor used in most enterprise bays.

What write endurance can I expect in daily use?

It is rated for up to ten full drive writes per day, equivalent to 15 petabytes written over the life of an 800 GB model.

Does it need any special cooling beyond normal server airflow?

Operating temperature range is 0 °C to 60 °C with 5 % to 95 % humidity; standard server airflow keeps it within those limits.

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