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Silver rectangular 3.5 inch hard drive with SAS connector

Epoch

Epoch 12TB 7.2K SAS 3.5" 12Gb/s internal hard drive

SKU CH-DQQ8-HY7JP

12TB 3.5-inch SAS 12Gb/s 7200 RPM enterprise drive for Dell PowerEdge 14G and 15G servers

  • Total capacity12 TB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • 12TB capacity stores large datasets
  • 7200 RPM spindle delivers consistent throughput
  • SAS 12Gb/s interface enables high-speed data transfer
  • 5-inch form factor fits standard drive bays
  • Compatible with Dell PowerEdge 14 and 15 generation servers

Capacity and interface

This 12TB SAS 12Gb/s hard drive is built for Dell PowerEdge 14 and 15 Generation servers and Dell Tower 15 Generation servers. It suits administrators who need high-capacity bulk storage inside compatible 3.5-inch bays. Buyers who need a different interface or a smaller form factor should look elsewhere.

Upgrade path and fit

The drive replaces lower-capacity SAS drives in the listed R240 through R940xa, R250 through R7525, and T150 through T550 models. The jump is worth it when existing arrays hit space limits and the chassis accepts 3.5-inch SAS devices. Systems without SAS backplanes or with only 2.5-inch bays cannot use this kit.

Sustained workload behaviour

Spinning at 7200 RPM, the drive delivers consistent throughput for sequential workloads such as backup, archiving and video surveillance recording. Random I/O performance follows typical mechanical limits, so databases with heavy random access may benefit from a different storage tier. The SAS 12Gb/s link keeps the pipe full during long write streams.

How it compares

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

Price $440.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 12 TB
Higher than about 90% of the 2,372 comparable items (median 2 TB).
Price per TB $36.75 per TB
Cheaper than about 74% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Total capacity12 TB
Performance
Rotational speed7,200 RPM
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

Does this 3.5" SAS drive fit a standard 3.5-inch server bay?

Yes, the 3.5-inch form factor matches standard 3.5-inch drive bays in the listed Dell PowerEdge 14G and 15G rack and tower servers.

What is the correct way to install the SAS 12Gb/s drive so the controller detects it?

Insert the drive into a hot-swap bay or caddy, seat the SAS connector firmly until it clicks, then run a controller rescan or reboot so the 12Gb/s link negotiates.

When should I expect to replace this 7200 RPM enterprise drive?

Enterprise 7200 RPM SAS drives are rated for continuous operation; plan replacement after five years or when SMART attributes show reallocated sectors or excessive seek errors.

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