only hard drivesin all categories
only hard drives
USA

WD Ultrastar DC HC550 WUH721816ALE6L4 16 TB
SATA

Photos - Hard Drive WD Ultrastar DC HC550 WUH721816ALE6L4 16 TB SATA
Videos 3
from $286.99 up to $341.00 
add to listmy lists
WD WUH721816ALE6L4
DC (server)helium5 year warranty
16 TB
SAS
16 TB
SATA
18 TB
SAS
18 TB
SATA
Placement
built-in
Type
HDD
Features
server
Size
16000 GB
Form factor
3.5 "
Connection
SATA3
Helium
Manufacturer's warranty
5 years
Cache memory
512 MB
RPM
7200 rpm
Data transfer rate
262 MB/s
Operation power consumption
6.5 W
Standby power consumption
5.6 W
MTBF
2.5 M h
MTBF
600 K
Size
147x102x26 mm
Weight
690 g
Added to E-Catalog
January 2021
P/N
0F38461

0F38462

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 WUH721816ALE6L4 16 TB
SATA

When you make a purchase through links on our site, we may receive a affiliate commission.

Western Digital WUH721816ALE6L4 35" 16TB SATA 6Gb/s72K RPM 512M 0F38462 512e/4Kn HDD

16TB capacity in a standard 3.5-inch form factor CMR technology works with all capacity enterprise applications & environments The first HDD in the industry to harness Energy-Assisted Magnetic Recording (EAMR) technology improves writability and therefore increases areal density. HelioSeal technology is the foundation for Western Digital’s high c... moreapacity HDDs and this is the 6th generation of HelioSeal product With its massive capacity and 2.5M MTBF (projected) reliability rating, the Ultrastar DC HC550 is ideal for object storage implementations. Object storage systems with erasure coding provide better data durability compared to RAID systems, given their tolerance for simultaneous error conditions.
Amazon.com
Delivery: in USA
Report
$325.26
Buy in shop

WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4)

18/16TB capacity in a standard 3.5-inch form factor CMR technology works with all capacity enterprise applications & environments Reliable, field-proven, 6th generation design Industry's first HDD with Energy-Assisted Magnetic Recording technology Industry's first Triple Stage Actuator HelioSeal design delivers outstanding power efficiency 2.5M hou... morers (projected) MTBF rating
Newegg.com
Delivery: in USA
Report
$341.00
Buy in shop

WD Ultrastar DC HC550 16TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38462 (WUH721816ALE6L4)

18/16TB capacity in a standard 3.5-inch form factor CMR technology works with all capacity enterprise applications & environments Reliable, field-proven, 6th generation design Industry's first HDD with Energy-Assisted Magnetic Recording technology Industry's first Triple Stage Actuator HelioSeal design delivers outstanding power efficiency 2.5M hou... morers (projected) MTBF rating Self-Encrypting Drive Options
Newegg.com
Delivery: in USA
Report
$286.99
Buy in shop
Series WD DC (server)Compare using chart →
WD Ultrastar DC HC580 WUH722424ALE6L4
from $519.99 
24000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC550 WUH721818ALE6L4
from $390.99 
18000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC310 HUS726T4TALE6L4
from $94.99 
4000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3
WD Ultrastar DC HC570 WUH722222ALE6L1
from $467.89 
22000 GB, built-in, pC, helium, 3.5 ", buffer: 512 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC330 WUS721010ALE6L4
from $237.95 
10000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HA210 HUS722T1TALA604
from $90.00 
1000 GB, built-in, server, 3.5 ", buffer: 128 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC510 HUH721010ALE604
from $285.45 
10000 GB, built-in, server, helium, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3
WD Ultrastar DC HA210 HUS722T2TALA604
from $131.99 
2000 GB, built-in, server, 3.5 ", buffer: 128 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC320 HUS728T8TALE6L4
from $230.60 
8000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC550 WUH721816ALE6L4
from $286.99 
16000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC560 WUH722020BLE6L4
from $473.11 
20000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3
WD Ultrastar DC HC570 WUH722222AL5201
from $599.99 
22000 GB, built-in, pC, helium, 3.5 ", buffer: 512 MB, write CMR, 7200 rpm, connection: SAS, warranty 5 years
WD Ultrastar DC HC530 WUH721414AL5204
from $349.98 
14000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SAS, warranty 5 years
WD Ultrastar DC HC530 WUH721414ALE604
from $294.45 
14000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC560 WUH722020BL5204
from $490.15 
20000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SAS
WD Ultrastar DC HC530 WUH721414ALE6L4
from $344.45 
14000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Ultrastar DC HC550 WUH721818AL5204
from $409.45 
18000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SAS, warranty 5 years
WD Ultrastar DC HC550 WUH721816AL5204
from $387.54 
16000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SAS, warranty 5 years
WD Ultrastar DC HC310 HUS726T6TAL5204
from $226.99 
6000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3
WD Ultrastar DC HC330 WUS721010AL5204
from $307.16 
10000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3, warranty 5 years

WD Ultrastar DC HC550 WUH721816ALE6L4 configurations

Price for WD Ultrastar DC HC550 WUH721816ALE6L4
WD Ultrastar DC HC550 WUH721816AL5204 16 TB
SAS
from $387.541 offer
WD Ultrastar DC HC550 WUH721816ALE6L4 16 TB
SATA
from $286.993 offers
WD Ultrastar DC HC550 WUH721818AL5204 18 TB
SAS
from $409.453 offers
WD Ultrastar DC HC550 WUH721818ALE6L4 18 TB
SATA
from $390.991 offer
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 2023358 view
Western Digital WD Ultrastar DC HC550 18TB Hard Drive Unboxing and Test
14 February 20229 814 view
We recommendCompare using chart →
Seagate Exos X24 ST16000NM002H
from $315.00 
16000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3, warranty 5 years
WD Red Pro WD161KFGX
from $309.99 
16000 GB, built-in, server, 3.5 ", buffer: 512 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
Seagate SkyHawk AI ST16000VE004
from $299.99 
16000 GB, built-in, server, helium, 3.5 ", buffer: 512 MB, write CMR, 7200 rpm, connection: SATA3, warranty 5 years
WD Gold Enterprise Class WD161KRYZ
from $349.99 
16000 GB, built-in, server, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3, warranty 5 years
Seagate IronWolf Pro ST16000NT001
from $295.99 
16000 GB, built-in, server, helium, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3, warranty 5 years
Seagate Exos X16 ST16000NM001G
from $249.00 
16000 GB, built-in, server, helium, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3, warranty 5 years
Seagate IronWolf ST16000VN001
from $309.99 
16000 GB, built-in, server, 3.5 ", buffer: 256 MB, 7200 rpm, connection: SATA3, warranty 3 years
Synology Plus Series HAT3310-16T
from $339.67 
16000 GB, built-in, pC, helium, 3.5 ", buffer: 512 MB, 7200 rpm, connection: SATA3, warranty 3 years
WD Blue
from $37.00 
built-in, 500 - 8000 GB, 3.5 ", 5400 rpm - 7200 rpm
Seagate BarraCuda Compute
from $39.73 
built-in, 500 - 8000 GB, 3.5 ", 5400 rpm - 7200 rpm
WD My Book NEW
from $109.00 
external, 4000 - 22000 GB, 3.5 "
WD Blue 2.5"
from $39.00 
built-in, 320 - 2000 GB, 2.5 ", 5200 rpm / 5400 rpm