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Silver 2.5 inch SAS hard drive bare unit

DELL

DELL W330K 146GB 2.5" SAS 15000 RPM 64MB laptop hard drive

SKU CH-35CJ-E8T41 MPN W330K

A 146 GB 2.5" SAS internal hard drive spinning at 15000 RPM with a 64 MB cache

  • InterfaceSerial Attached SCSI (SAS)
  • NAND Flash Memory TypeHard Drive
  • Cache64MB
  • RPM15000 RPM
  • UsageIdeal for Servers
  • Form Factor2.5"
  • 146 GB capacity stores critical server data
  • 15 000 RPM spindle speed accelerates transaction processing
  • 64 MB cache buffers burst I/O workloads
  • SAS interface connects directly to enterprise controllers
  • 5 inch form factor fits dense drive bays

Dell 146 GB 15K SAS drive

This 2.5 inch internal hard drive uses a Serial Attached SCSI interface and spins at 15000 RPM with a 64 MB cache. It is built for Dell server environments that require high-speed mechanical storage in a compact form factor. The W330K part number identifies an original Dell component supplied as a bare drive.

Suited for server upgrades needing 15K SAS

This drive fits administrators replacing a failed 146 GB 15K SAS unit in a compatible Dell array or enclosure. Buyers who need larger capacities, different interfaces, or drives for desktop or laptop workloads should look at other models. The bare-drive packaging also means no mounting hardware or cables are included.

15000 RPM spindle speed

The 15K rotational speed is the defining specification that determines whether this drive matches the performance tier required by the target array. Controllers and backplanes must support 6 Gb/s SAS and the 2.5 inch form factor for the drive to function correctly.

Highlights

  • 146 GB capacity stores critical server data
  • 15 000 RPM spindle speed accelerates transaction processing
  • 64 MB cache buffers burst I/O workloads
  • SAS interface connects directly to enterprise controllers
  • 5 inch form factor fits dense drive bays

Specifications

BrandDell
InterfaceSerial Attached SCSI (SAS)
NAND Flash Memory TypeHard Drive
Cache64MB
RPM15000 RPM
UsageIdeal for Servers
Form Factor2.5"
Shipping weight0.68 kg
Package size137 × 79 × 15 mm

Questions about this item

Is the 146 GB capacity the right choice for a server that needs fast access to a modest working set?

At 146 GB and 15000 RPM the drive keeps latency low for small, frequently accessed datasets typical of database logs or OS volumes.

How does the 15000 RPM spindle speed translate to real-world latency in a server chassis?

The 15000 RPM rotation cuts average rotational latency to about 2 ms, so random read/write requests spend less time waiting for the platter.

What does the SAS 6 Gb/s interface actually limit in a RAID controller backplane?

The SAS link caps sustained throughput at 6 Gb/s, so sequential transfers cannot exceed that ceiling even if the drive mechanics could go faster.

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