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Western digital ultrastar dc hc330 0b42258 10TB sed data center HDD 3.5" sas 12GB/s 7200rpm 256mb cmr

Product image: Western digital ultrastar dc hc330 0b42258 10TB sed data center HDD 3.5" sas 12GB/s 7200rpm 256mb cmr-null
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Western digital ultrastar dc hc330 0b42258 10TB sed data center HDD 3.5" sas 12GB/s 7200rpm 256mb cmr

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Description

Item No. a683b0ac-47cd-4143-ae5d-b05390004755
WD Ultrastar DC HC330 0B42258 — 10TB SED SAS HDD 10TBSAS 12GB/sSEDCMR · 256 MB The Western Digital Ultrastar DC HC330 0B42258 is a 10TB data-center-class 3.5-inch hard drive with a native SAS 12GB/s interface and hardware self-encryption (SED), built for secure, high-availability enterprise storage. Its helium-sealed CMR platform spins at 7200 RPM with a 256 MB cache. Identified by part number 0B42258 (model WUS721010AL5204), it is rated for 550TB/year workloads and a 2-million-hour MTBF.

Attributes

Hdd General Characteristics

  • Disk Type: SAS
  • Storage Capacity: 10 TB
  • Form Factor: 3.5-inch

Details

WD Ultrastar DC HC330 0B42258 — 10TB SED SAS HDD

10TBSAS 12GB/sSEDCMR · 256 MB

The Western Digital Ultrastar DC HC330 0B42258 is a 10TB data-center-class 3.5-inch hard drive with a native SAS 12GB/s interface and hardware self-encryption (SED), built for secure, high-availability enterprise storage. Its helium-sealed CMR platform spins at 7200 RPM with a 256 MB cache. Identified by part number 0B42258 (model WUS721010AL5204), it is rated for 550TB/year workloads and a 2-million-hour MTBF. Typically in stock with fast delivery across Cyprus.

Compatibility & Setup
This is a bare internal 3.5-inch drive with a SAS 12GB/s interface — it requires a SAS controller, HBA or SAS backplane and will NOT connect to SATA-only motherboard ports (SAS ports accept SATA drives, but not the reverse). As a self-encrypting drive, hardware AES encryption is always active; to manage keys and Instant Secure Erase you need a host or controller with TCG/SED support. No mounting screws or cables are included, and it ships unformatted for initialisation in your host.

Best For

✓Enterprise and hyperscale data centres
✓SAS servers, RAID controllers and JBOD
✓Security-sensitive storage requiring SED
✓24/7 capacity and nearline storage
✓Dual-port redundant-path SAS arrays
✓Dense multi-bay high-availability chassis

Key Features

 
Native SAS 12GB/s dual-port
A SAS-3 12GB/s interface with dual-port capability provides redundant data paths and high throughput for enterprise servers and high-availability JBOD arrays.
 
Self-Encrypting Drive (SED)
Hardware AES self-encryption with Instant Secure Erase delivers compliant data protection and lets you cryptographically wipe the drive in seconds at end of life.
 
Helium CMR reliability
A helium-sealed CMR (conventional magnetic recording) platform sustains consistent write performance and RAID compatibility with no SMR shingled-write penalty.
 
Data-center endurance
Rated for 550TB/year workloads and a 2-million-hour MTBF, backed by a 5-year limited warranty for continuous 24/7 duty.

Technical Specifications

Identification
Brand Western Digital
Series Ultrastar DC HC330
Part Number 0B42258
MPN / Model 0B42258 — WUS721010AL5204
Capacity & Format
Capacity 10TB
Form Factor 3.5-inch internal
Recording CMR — conventional magnetic recording
Platform Helium-sealed
Sector Format 512e — 512-byte emulated
Interface & Performance
Interface SAS 12GB/s (SAS-3), dual-port
Rotational Speed 7200 RPM
Cache 256 MB
Sustained Transfer Up to 250 MB/s
Compatibility Requires SAS host — not SATA ports
Security
Encryption SED — hardware AES self-encrypting drive
Secure Erase Instant Secure Erase supported
Key Management Requires TCG/SED-capable host/controller
Reliability
MTBF 2,000,000 hours
Rated Workload 550TB/year
Non-recoverable Errors 1 in 10^15 bits read
Duty Cycle 24/7 continuous
Warranty 5-year limited
Power & Physical
Read/Write Power ~7.4 W (typical)
Idle Power ~5.1 W (typical)
Dimensions (L×W×H) 147 × 101.6 × 26.1 mm
Weight ~660 g
Operating Temp 5–60 °C

Frequently Asked Questions

Will the 0B42258 work in a SATA port?
No. It is a SAS 12GB/s drive and needs a SAS controller, HBA or SAS backplane. SATA-only ports cannot run a SAS drive — check your server or RAID controller before ordering.
What does SED encryption mean?
It is a hardware self-encrypting drive: an on-board AES engine encrypts all data automatically. With a TCG/SED-capable controller you can manage keys and use Instant Secure Erase to wipe the drive cryptographically in seconds.
Is the DC HC330 a CMR or SMR drive?
It uses CMR (conventional magnetic recording) on a helium-sealed platform, so it delivers consistent write performance and full RAID compatibility — unlike SMR drives, which can slow under sustained writes.
What do I need to know before buying?
It is a bare internal 3.5-inch SAS SED drive with no mounting kit or cables, and it ships unformatted for initialisation in your host. Typically in stock with fast delivery across Cyprus.
Singular Expert Insight
The Ultrastar DC HC330 is a proven 10TB data-centre SAS drive, and this SED variant adds hardware self-encryption for security-sensitive and compliance-driven deployments. Choose it when your chassis is SAS-based and you need SED; for SATA servers or non-encrypted needs, a SATA HA340 or WD Gold costs less. Building out a secure array? Pair it with matching drives from our enterprise/server HDD range. For latency-critical tiers, an enterprise SSD is the complement.

Buyer’s Guide

Buy it if
Your server or JBOD is SAS-based and needs 10TB per bay
You require hardware SED encryption for compliance
You want dual-port redundancy and a 5-year warranty
Skip it if
Your system only has SATA ports — choose a SATA drive
You do not need self-encryption — a standard drive costs less
You need sub-millisecond latency — choose an enterprise SSD
Also consider
WD Ultrastar DC HA340 10TB SATA (non-SED)
WD Ultrastar HC-series higher capacities
Seagate Exos 10TB SAS as an alternative