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Silver 2.5 inch SAS hard drive with attached tray

DELL

DELL EqualLogic 146GB 15K SAS 6Gbps 2.5" internal hard drive

SKU CH-77ZN-4226E

15,000 RPM SAS drive delivers 146 GB in a 2.5" form factor with 4.5 ms average seek time

  • Total capacity146 GB
  • Interface typeSAS 6Gb/s
  • Form factor2.5 in (6.35 cm)
  • Rotational speed15,000 RPM
  • Average seek time4.5 ms
  • 146 GB capacity stores critical data sets
  • 15 000 RPM spindle delivers rapid transaction throughput
  • SAS 6 Gb/s interface integrates with EqualLogic arrays
  • 5 inch form factor fits dense server bays
  • 5 ms average seek cuts latency for random workloads

146 GB 15 K SAS enterprise drive

This 146 GB SAS hard drive spins at 15 000 RPM and uses a 6 Gb/s interface. The 2.5 inch form factor fits dense server and storage arrays. It is built for workloads that demand low latency and high IOPS in enterprise environments.

Tray attached for hot-swap bays

The drive ships with a carrier tray already mounted so it slides directly into compatible hot-swap chassis. No separate caddy or screws are required during installation. This reduces deployment time when replacing or adding drives in a live array.

4.5 ms average seek time

A 4.5 ms average seek time reflects the 15 000 RPM spindle speed and positions the drive for random-access performance. Buyers who need larger capacity per spindle should consider other models because this unit is fixed at 146 GB.

How it compares

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

Price $20.99
Cheaper than about 94% of the 4,938 comparable items (median $107.99).
Total capacity 146 GB
Lower than about 94% of the 2,372 comparable items (median 2 TB).
Price per TB $143.77 per TB
Pricier than about 71% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameDell
Part numberNJYM3
Total capacity146 GB
Performance
Rotational speed15,000 RPM
Average seek time4.5 ms
Ports & slots
Interface typeSAS 6Gb/s
Size & build
Form factor2.5 in (6.35 cm)

Questions about this item

Will the 15K RPM spindle require any scheduled maintenance or bearing replacement during its service life?

Enterprise SAS drives like this 15000 RPM unit are sealed at the factory and have no user-serviceable parts, so no routine bearing or spindle maintenance is needed.

What is the first performance limit reached when the 146GB drive runs sustained random I/O at 15000 RPM?

The 4.5 ms average seek time becomes the bottleneck for random workloads long before the 6 Gb/s SAS interface saturates.

How much heat and noise does the 2.5 inch 15K SAS drive produce when operating continuously in a server chassis?

The small 2.5 inch form factor concentrates heat, so the drive runs warmer and louder than slower 3.5 inch models and needs directed airflow in the bay.

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