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Silver 3.5 inch SAS hard drive with green circuit board visible on underside

Seagate

Seagate ST2000NM0135Product 2TB 7200RPM SAS 12Gb/s 128MB 3.5" internal hard drive

SKU CH-4ZCE-8RN6Z MPN ST2000NM0135Product

A 2TB enterprise hard drive with 7200 RPM, SAS interface and 128MB cache for 3.5-inch bays

  • Total capacity2 TB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Flash memory typeSLC
  • Rotational speed7,200 RPM
  • Cache memory128 MB
  • 2TB capacity stores large datasets
  • 7200 RPM spindle delivers fast sequential throughput
  • SAS 12Gb/s interface enables high-speed host connectivity
  • 128MB cache buffers bursts for smoother performance
  • 5-inch form factor fits standard drive bays

Seagate 2TB SAS Enterprise Drive

The Seagate ST2000NM0135 is a 2TB 3.5-inch internal hard drive built for enterprise workloads. It spins at 7200 RPM with a 128MB cache and connects through a SAS 12Gb/s interface. The drive uses SLC NAND flash memory and is supplied new in retail or OEM packaging.

Who This Suits

This drive suits administrators who need a 2TB enterprise SAS drive for 12Gb/s backplanes and RAID arrays. The 7200 RPM spindle and 128MB cache support sustained throughput in multi-user environments. Buyers who require a different capacity or a non-SAS interface should look elsewhere.

SAS 12Gb/s Interface Decides Fit

The single specification that decides compatibility is the SAS 12Gb/s interface. Your controller or backplane must support this exact interface for the drive to function. No other connector or protocol will work with this unit.

How it compares

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

Price $74.99
Cheaper than about 61% of the 4,938 comparable items (median $107.99).
Total capacity 2 TB
Typical for this category: the median of 2,372 items is 2 TB.
Price per TB $37.50 per TB
Cheaper than about 73% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Part numberST2000NM0135
Total capacity2 TB
Performance
Rotational speed7,200 RPM
Storage
Flash memory typeSLC
Cache memory128 MB
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

Does the 3.5-inch SAS drive fit a standard 3.5-inch drive bay?

The 3.5-inch form factor matches standard 3.5-inch internal bays; secure it with four screws and connect the SAS 12Gb/s data and power cables.

What is the correct way to connect the SAS 12Gb/s interface during installation?

Plug the SAS 12Gb/s data cable firmly into the drive's SAS port and the matching controller port; the step often missed is verifying the controller runs at 12Gb/s.

How long can the 2TB 7200RPM enterprise drive run before it typically needs replacement?

Enterprise drives such as this 2TB 7200RPM model are built for continuous operation and commonly serve for several years before a preventive swap is planned.

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