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WD Ultrastar DC HC550 WUH721818AL5204 18 TB
SAS

Photos - Hard Drive 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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£492.85
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WD Ultrastar DC HC550 18TB 3.5 HDD SAS 512E SE 7200RPM 0F38353

0F38353...
Senetic.co.uk
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£383.95
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Western Digital Ultrastar DC HC550 internal hard drive 18 TB 7200 RPM 0F38353

Hard driveComponent forServer/workstationHDD interface transfer rate12 Gbit/sWorkload rate limit550 TB/yearAverage latency4.1... more6 msMean time between failures (MTBF)2500000 hStart/stop cycles600000HDD speed7200 RPMHDD size3.5"HDD capacity18 TBFeaturesTypeHDDComponent forServer/workstationHDD interface transfer rate12 Gbit/sWorkload rate limit550 TB/yearInterfaceSASAverage latency4.16 msMean time between failures (MTBF)2500000 hStart/stop cycles600000HDD speed7200 RPMHDD size3.5"HDD capaci
itsupplies.uk
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£380.78
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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 0F38353

The breadth and depth of Big Data drives a universal need for greater capabilities across a wide variety of applications and... moreworkloads.By laying the foundation for a seamless data center, Western Digital provides the ability to conquer the data explosion with the Ultrastar DC HC500 series of hard disk drives (HDDs).The DC HC500 series is designed for private and public cloud environments where storage density and cost-effective infrastructure are critical.Ultrastar HC550 hard drives represent the commercial implementation of power assisted magnetic recording technology and use the triple stage actuator.Data center decisions are driven by TCO.The Ultrastar DC HC550, with 16 and 18 TB 1, plays a key role in lowering TCO.Total Cost Of Ownership (TCO) Is The Driver Of Data Center Architecture Data center decisions are driven by TCO.Higher capacity hard drives play a critical role in lowering TCO.An 18TB hard drive for a data center offers 29% more capacity than a 14TB hard drive in the same form factor.Compared to smaller capacity drives, higher capacity hard drives enable data centers to have lower capital expenditures by reducing system level and hardware support costs.High-reliability, low-power, helium-sealed disks reduce energy and maintenance costs, while promoting savings in operating expenses.For example, a data center using 18TB hard drives instead of 14TB can reduce the number of racks required by 22%, Raise The Bar On Capacity Thanks To New Technologies:- Ultrastar DC HC550 integrates a suite of technologies into a 9-drive platform to create hard drives like never before.The 18TB capacity is achieved by combining technologies that improve areal density and integrating with technologies that boost performance and reduce power consumption.- It is the first hard drive in the industry to master Energy Assisted Magnetic Recording (EAMR) technology, which improves writeability and thus increases areal density.- Features the industry´s first Triple Stage Actuator (TSA) which improves head placement accuracy and offers superior performance plus higher areal density.- HelioSeal ® technologyit is the basis for Western Digital´s high-capacity hard drives, spanning 6 generations of HelioSeal products.To date, Western Digital has shipped more than 65 million HelioSeal products.Features:- Magnetic recording technology.- The triple stage actuator.- HelioSeal Technology.- Reliable design.- HelioSeal design provides energy savings.Specifications:General:- Type of device:Internal hard-drive.- Ability:18 TB.- Form factor:3.5´´.- Interface:SAS 12Gb/s.- Buffer size:512 MB.-.Features:Rotational Vibration Protection (RVS), HelioSeal, Conventional Magnetic Recording (CMR), Sanitize Cryptographic Erase support, Media Cache Plus, Sanitize Cyptographic Scramble support, Two-Dimensional Magnetic Recording (TDMR), Energy-Assisted Magnetic Recording (EAMR),Triple State Actuator (TSA).- Width:101.6 mm.- Depth:147 mm.- Height:26.1 mm.- Weight:690 g Installment:-
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£360.99
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3 more offer(s)
Series WD DC (server)Compare using chart →
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from £393.99 
20000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SAS
WD Ultrastar DC HC550 WUH721818AL5204
from £360.99 
18000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SAS, warranty 5 years
WD Ultrastar DC HC310 HUS726T4TAL5204
from £119.49 
4000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3
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from £274.49 
14000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC550 WUH721814ALE6L4
from £247.78 
14000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC550 WUH721816AL5204
from £314.36 
16000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SAS, warranty 5 years
WD Ultrastar DC HC310 HUS726T6TAL5204
from £191.99 
6000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3
WD Ultrastar DC HC330 WUS721010AL5204
from £217.09 
10000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3, 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 £247.783 offers
WD Ultrastar DC HC550 WUH721816AL5204 16 TB
SAS
from £314.366 offers
WD Ultrastar DC HC550 WUH721816ALE6L4 16 TB
SATA
from £247.787 offers
WD Ultrastar DC HC550 WUH721818AL5204 18 TB
SAS
from £360.998 offers
WD Ultrastar DC HC550 WUH721818ALE6L4 18 TB
SATA
from £291.939 offers
Video reviews
Western Digital Ultrastar DC HC550 18TB #1 (good) and #2 (bad) - Spin up/down
22 July 20234 336 view
Western Digital Ultrastar DC HC550
27 May 2023315 view
Western Digital WD Ultrastar DC HC550 18TB Hard Drive Unboxing and Test
14 February 20229 707 view
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