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WD Ultrastar DC HC550 WUH721818AL5204 18 TB
SAS

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WD WUH721818AL5204
DC (server)helium5 year warranty
14 TB
SATA
16 TB
SAS
16 TB
SATA
18 TB
SAS
18 TB
SATA
Placement
built-in
Type
HDD
Features
server
Size
18000 GB
Form factor
3.5 "
Connection
SAS
Helium
Manufacturer's warranty
5 years
Cache memory
512 MB
RPM
7200 rpm
Operation power consumption
8.8 W
Standby power consumption
5.8 W
MTBF
2.5 M h
MTBF
600 K
Size
147x102x26 mm
Weight
690 g
Added to E-Catalog
January 2021
P/N
0F38352

0F38353

0F38354

HC500 series of helium-filled hard drives.
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog WD 2025 - new arrivals, bestsellers, and the most relevant models WD.
How to Choose a Hard DriveUnderstanding how to choose the right HDD for gaming, video recording, server, and other tasks

Buy WD Ultrastar DC HC550 WUH721818AL5204 18 TB
SAS

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Western Digital WD WUH721818AL5204 18TB SAS 12Gb/s 72K RPM 512M 0F38353 512e/4Kn SE HDD

SAS Interface is NOT intended for Desktop PC's CMR technology works with all capacity enterprise applications and environmen... morets Industry's first HDD with Energy Assisted-Magnetic Recording technology Industry's first Triple Stage Actuator HelioSeal design delivers outstanding power efficiency (Watts/TB)
Amazon.co.uk
Delivery: to United Kingdom
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£524.73
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WD Ultrastar DC HC550 18TB 3.5 HDD SAS 512E SE 7200RPM 0F38353

0F38353...
Senetic.co.uk
Delivery: to United Kingdom
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£370.20
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Western Digital Ultrastar DC HC550 internal hard drive 18 TB 7200 RPM 0F38353

Ultrastar DC HC500 SeriesHigh Capacity for Massive Data and Lower Total Cost of OwnershipDriving Up Capacity and Driving Down... moreTCO for Cloud and Hyperscale Data CentersThe breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center. Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard disk drives (HDDs). The DC HC500 series is designed for public and private cloud environments where storage density and cost-efficient infrastructure is critical.The 18TB/16TB Ultrastar DC HC550 HDDs are the first commercial implementation of Energy-Assisted Magnetic Recording technology and utilize the industry's first Triple Stage Actuator. These technologies. integrated with HelioSeal on a 9-disk platform. deliver the highest areal density and unmatched Total Cost of Ownership for customer and market needs.Solves TCO Challenges- High CapacityUp to 18TB HDDs. drop-in ready for Big Data workloads- Low PowerUp to 61% lower idle W/TB than 10TB Ultrastar air-filled drives- More Reliable25% higher MTBF rating than air-filled HDDsContinuous Innovation for Highest Capacities and Lower TCOThe Ultrastar DC HC550 18TB CMR HDD and Ultrastar DC HC650 20TB SMR HDD are delivering industry leading capacity for the data center through a combination of new and proven technologies.Western Digital is the first to deliver Energy-Assisted Magnetic Recording (EAMR) technology and a Triple Stage Actuator (TSA). These new technologies combined with further mechanical innovations and HelioSeal technology provide the industry's highest capacities to enable data at scale with optimized TCO for data center architectures. while maintaining workload reliability and performance.
itsupplies.uk
Delivery: to United Kingdom
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£352.15
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WD Ultrastar 0F38353 DC 18TB 3.5" SAS HDD/Hard Drive

Scan.co.uk
Delivery: to United Kingdom
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£378.98
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Western Digital Ultrastar DC HC550 internal hard drive 18 TB 7200 RPM 0F38353

Western Digital Ultrastar DC HC550 internal hard drive 18 TB 7200 RPM 512 MB 3.5" SAS
ComputersDeal.com
Delivery: in United Kingdom
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£352.15
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5 more offer(s)
Series WD DC (server)Compare using chart →
WD Ultrastar DC HC550 WUH721818ALE6L4
from £312.41 
18000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC310 HUS726T4TALE6L4
from £127.96 
4000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3
WD Ultrastar DC HC330 WUS721010ALE6L4
from £199.00 
10000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC310 HUS726T6TALE6L4
from £165.29 
6000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3
WD Ultrastar DC HC580 WUH722424ALE6L4
from £409.99 
24000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HA210 HUS722T1TALA604
from £86.95 
1000 GB, built-in, server, 3.5 ", buffer: 128 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC550 WUH721816ALE6L4
from £291.92 
16000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC570 WUH722222ALE6L1
from £378.40 
22000 GB, built-in, pC, helium, 3.5 ", buffer: 512 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC320 HUS728T8TALE6L4
from £196.28 
8000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC310 HUS726T4TAL5204
from £104.99 
4000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3
WD Ultrastar DC HC510 HUH721010ALE604
from £291.89 
10000 GB, built-in, server, helium, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3
WD Ultrastar DC HA210 HUS722T2TALA604
from £106.64 
2000 GB, built-in, server, 3.5 ", buffer: 128 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC320 HUS728T8TAL5204
from £99.99 
8000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SAS, warranty 5 years
WD Ultrastar DC HC550 WUH721818AL5204
from £352.15 
18000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SAS, warranty 5 years
WD Ultrastar DC HC550 WUH721816AL5204
from £299.66 
16000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SAS, warranty 5 years
WD Ultrastar DC HC310 HUS726T6TAL5204
from £186.99 
6000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3
WD Ultrastar DC HC330 WUS721010AL5204
from £244.99 
10000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC560 WUH722020ALE6L4
from £550.20 
20000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3
WD Ultrastar DC HC560 WUH722020BLE6L4
from £352.15 
20000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3
WD Ultrastar DC HC530 WUH721414AL5204
from £221.21 
14000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SAS, warranty 5 years

WD Ultrastar DC HC550 WUH721818AL5204 configurations

Price for WD Ultrastar DC HC550 WUH721818AL5204
WD Ultrastar DC HC550 WUH721814ALE6L4 14 TB
SATA
from £343.082 offers
WD Ultrastar DC HC550 WUH721816AL5204 16 TB
SAS
from £299.666 offers
WD Ultrastar DC HC550 WUH721816ALE6L4 16 TB
SATA
from £291.928 offers
WD Ultrastar DC HC550 WUH721818AL5204 18 TB
SAS
from £352.1510 offers
WD Ultrastar DC HC550 WUH721818ALE6L4 18 TB
SATA
from £312.419 offers
Video reviews
Western Digital Ultrastar DC HC550 18TB #1 (good) and #2 (bad) - Spin up/down
22 July 20234 670 view
Western Digital Ultrastar DC HC550
27 May 2023326 view
Western Digital WD Ultrastar DC HC550 18TB Hard Drive Unboxing and Test
14 February 20229 814 view
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