Description
WD Ultrastar DC HC550 WUH721818ALE6L4 – Hard drive – 18 TB – internal – 3.5″ – SATA 6Gb/s – 7200 rpm – buffer: 512 MB
The Western Digital Ultrastar DC HC550 18TB hard drive 0F38459 is designed for use in data centres and enterprise environments where high capacity, reliability, and advanced data storage technologies are essential for scalable and efficient operations.
The Ultrastar DC HC550 series integrates HelioSeal technology and Energy-Assisted Magnetic Recording, delivering exceptional capacity with low power consumption. Featuring a 3.5-inch form factor and a SATA III interface, this model seamlessly fits into standard server and workstation setups. It is engineered for 24/7 operation, supporting demanding workloads and offering enterprise-grade durability. With its large capacity and robust construction, the DC HC550 is ideal for businesses requiring extensive data storage, fast access, and high performance for mission-critical applications.
Key Features
- 18TB storage capacity in a 3.5-inch form factor for high-density environments
- HelioSeal technology for enhanced reliability and reduced power consumption
- Energy-Assisted Magnetic Recording for increased data density
- Triple Stage Actuator technology for precise head movement and improved performance
- SATA III (6Gb/s) interface for broad compatibility with enterprise hardware
- Supports up to 550TB workload rate per year
- 7200 RPM spindle speed and 512MB cache for fast data retrieval
- Rated for a mean time between failures (MTBF) of 2.5 million hours
- Quiet operation at just 2dB (idle), well suited for data centres
- Compatible with Windows, Windows Server, and Linux platforms
System Requirements
- Standard 3.5-inch drive bay with SATA III (6Gb/s) support
- Works with servers, workstations, network video recorders (NVRs), digital video recorders (DVRs), desktop PCs, and some storage arrays
- System support for up to 18TB per drive
- Compatible with Windows, Windows Server, and Linux operating systems
- Power supply designed for 5.6 to 5.8 watts idle draw per drive
- Operating temperature range of 5°C to 60°C, with 50G operating shock tolerance
- Supported by major HBAs and RAID adapters including Adaptec, Areca, Broadcom, and MegaRAID
Case Use Example
In a cloud services company, Western Digital Ultrastar DC HC550 18TB drives are deployed to expand storage clusters for backup, archiving, and database workloads.
The large capacity and robust design enable smooth management of large data volumes without compromising on reliability or performance.
This strategy maintains continuous data access and operational efficiency for high-demand enterprise tasks, ensuring rapid retrieval and strong data integrity in a 24/7 operational environment.
Western Digital 0F38459 – Questions and Answers
What storage capacity does the Ultrastar DC HC550 0F38459 offer?
This drive provides 18TB of storage in a 3.5-inch size for enterprise and large-scale environments.
Which interfaces and platforms are supported by this hard drive?
It uses a SATA III (6Gb/s) interface for connectivity and is compatible with Windows, Windows Server, and Linux systems across servers, desktops, and storage solutions.
How durable is the Western Digital Ultrastar DC HC550?
The drive features a mean time between failures (MTBF) of 2.5 million hours and is rated to handle up to 550TB written per year for reliable long-term use.
What advanced technologies are featured in this model?
Technologies include HelioSeal for reliability, Energy-Assisted Magnetic Recording for expanded capacity, and Triple Stage Actuator for high-precision performance.
What environments are ideal for the 0F38459 drive?
This model is intended for enterprise data centres, cloud storage, and any applications demanding large capacity and robust performance around the clock.
Summary
The Western Digital Ultrastar DC HC550 18TB SATA hard drive (SKU: 0F38459) delivers high-density, power-efficient data storage for servers, cloud platforms, and large enterprise operations. With proven technology and compatibility across leading systems, it provides dependable, expandable storage for mission-critical workloads in demanding environments.
FeatureFeature Value
| HDD size |
3.5″ |
| HDD capacity |
18000 GB |
| HDD speed |
7200 RPM |
| Interface |
Serial ATA III |
| Type |
HDD |
| Component for |
Server/workstation |
| Storage drive buffer size |
512 MB |
| HDD interface transfer rate |
6 Gbit/s |
| Average latency |
4.16 ms |
| 24/7 operation |
Y |
| Start/stop cycles |
600000 |
| Workload rate limit |
550 TB/year |
| Noise level (idle) |
2 dB |
| Mean time between failures (MTBF) |
2500000 h |
| Power consumption (read) |
8.8 W |
| Power consumption (write) |
8.8 W |
| Power consumption (idle) |
5.8 W |
| Operating voltage |
5 / 12 V |
| Operating temperature (T-T) |
5 – 60 °C |
| Storage temperature (T-T) |
-40 – 70 °C |
| Operating vibration |
0.67 G |
| Non-operating vibration |
1.04 G |
| Operating shock |
50 G |
| Non-operating shock |
250 G |
| Width |
101.6 mm |
| Height |
26.1 mm |
| Depth |
147 mm |
| Weight |
690 g |
| Manual |
Y |
| Quantity |
1 |
| Harmonized System (HS) code |
84717050 |
