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A silver 3.5 inch SAS hard drive with circuit board visible

DELL

DELL 2FX1T 20TB 7.2K 512e 12Gbps SAS 3.5 internal hard drive

SKU CH-SR1Y-XJR5G

20 TB 3.5-inch SAS hard drive spinning at 7.2K RPM with 512e formatting and 12 Gbps transfer rate for Dell PowerEdge servers

  • Total capacity20 TB
  • Interface typeSAS
  • 20 TB capacity supports large data workloads
  • 2 K rpm spindle delivers steady throughput
  • 512e sector format eases legacy system integration
  • 12 Gbps SAS interface enables fast host communication
  • Compatible with Dell PowerEdge R750, R760 and T550 servers

20TB SAS 3.5 drive

This 20TB SAS hard drive uses a 3.5 inch form factor and a 12Gbps interface. It is built for Dell PowerEdge servers that need high-capacity nearline storage. The 512e format works with controllers that expect 512 byte logical sectors. It suits IT teams adding bulk capacity to compatible arrays.

7.2K RPM thermals and power

The drive spins at 7.2K RPM and is designed for continuous operation in rack and tower chassis. Normal use keeps thermals within the server cooling envelope without extra airflow planning. Power draw follows standard nearline SAS profiles for this capacity class. Acoustic output is typical for enterprise 3.5 inch drives in a populated bay.

Fits PowerEdge bays and backplanes

The drive mounts directly in 3.5 inch hot-plug bays on the listed PowerEdge models from the R250 through the R7725 and T150 through T550. It requires a SAS backplane or HBA that supports 12Gbps signalling and 512e sector emulation. No adapter brackets or interposers are needed when the chassis matches the compatibility list. It frees smaller bays for other workloads.

How it compares

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

Price $1,091.99
Pricier than about 91% of the 4,938 comparable items (median $107.99).
Total capacity 20 TB
Higher than about 94% of the 2,372 comparable items (median 2 TB).
Price per TB $54.60 per TB
Cheaper than about 57% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameDell
Model name2FX1T, MG11SCA20TEY
Total capacity20 TB
Ports & slots
Interface typeSAS

Questions about this item

How do I install the 20TB 3.5 SAS drive in a PowerEdge R750 and what step is often missed?

Slide the 3.5 SAS drive into a hot-plug bay until the carrier clicks, then verify the controller sees the 512e logical block size before formatting.

What maintenance or replacement will the 20TB 7.2K SAS drive need over time?

The 7.2K spindle bearings and SAS interface are sealed; plan replacement when SMART reallocated-sector counts rise or after the rated workload limit is reached.

What limit appears first on the 20TB 12Gbps SAS drive during sustained writes?

The 12Gbps SAS link and 7.2K rotational speed cap sustained throughput well below the 20TB capacity ceiling.

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