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WD Blue WD40EZAZ 4 TB
SMR

Photos - Hard Drive WD Blue WD40EZAZ 4 TB SMR
Videos 3
$83.99 
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Newegg.com

WD Blue 4TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 256MB Cache 3.5

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WD Blue WD40EZAZ 4 TB
SMR
Blue (storage, protection)SMR
500 GB
32/7200
500 GB
64/5400
1 TB
64/7200
2 TB
64/5400
2 TB
256/7200
3 TB
64/5400
3 TB
256/5400
4 TB
CMR
4 TB
SMR
6 TB
64/5400
6 TB
CMR
6 TB
SMR
8 TB
128/5640
8 TB
256/5640
Main
Placementbuilt-in
TypeHDD
FeaturespC
Size4000 GB
Form factor3.5 "
Manufacturer's warranty2 years
Connection
InterfaceSATA
SATA 2
SATA 3
Technical specs
Cache memory256 MB
Record technologySMR
RPM5400 rpm
Data transfer rate180 MB/s
Operation power consumption5.3 W
Standby power consumption3.4 W
Shockproof65 G
Reading noise level28 dB
Standby mode noise level25 dB
MTBF300 K
General
Size147x102x26 mm
Weight680 g
Official Websitewesterndigital.com
Added to E-Catalogmay 2021

Information in model description is for reference purposes.
Before buying always check characteristics and configuration of product with online store manager
Catalog WD 2024 - new products, best sales and most actual models WD.
Series WD Blue (storage, protection)Compare using chart →
WD Blue WD10EZEX
from $38.95 
1000 GB, built-in, pC, 3.5 ", buffer: 64 MB, write CMR, 7200 rpm, warranty 2 years
WD Blue WD20EZBX
from $64.99 
2000 GB, built-in, pC, 3.5 ", buffer: 256 MB, write SMR, 7200 rpm, warranty 2 years
WD Blue WD40EZAX
from $79.99 
4000 GB, built-in, pC, 3.5 ", buffer: 256 MB, write CMR, 5400 rpm, warranty 2 years
WD Blue WD20EARZ
from $59.99 
2000 GB, built-in, pC, 3.5 ", buffer: 64 MB, write CMR, 5400 rpm, warranty 2 years
WD Blue WD80EAZZ
from $129.99 
8000 GB, built-in, pC, 3.5 ", buffer: 128 MB, write CMR, 5600 rpm, warranty 2 years
WD Blue WD40EZAZ
from $83.99 
4000 GB, built-in, pC, 3.5 ", buffer: 256 MB, write SMR, 5400 rpm, warranty 2 years
WD Blue WD5000AZLX
from $16.99 
500 GB, built-in, pC, 3.5 ", buffer: 32 MB, write CMR, 7200 rpm, warranty 2 years
WD Blue WD60EZAZ
from $125.99 
6000 GB, built-in, pC, 3.5 ", buffer: 256 MB, write SMR, 5400 rpm, warranty 2 years
WD Caviar Blue WD5000AAKX
from $24.35 
500 GB, built-in, pC, 3.5 ", buffer: 16 MB, 7200 rpm, warranty 3 years
WD Blue WD30EZAZ
from $79.99 
3000 GB, built-in, pC, 3.5 ", buffer: 256 MB, write SMR, 5400 rpm, warranty 2 years
WD Blue WD5000AZRZ
from $19.99 
500 GB, built-in, pC, 3.5 ", buffer: 64 MB, write CMR, 5400 rpm, warranty 2 years
WD Blue WD60EZAX
from $114.99 
6000 GB, built-in, pC, 3.5 ", buffer: 256 MB, write CMR, 5400 rpm, warranty 2 years
WD Blue WD60EZRZ
from $155.98 
6000 GB, built-in, pC, 3.5 ", buffer: 64 MB, 5400 rpm, warranty 2 years
WD Caviar Blue WD3200AAKX
from $14.99 
320 GB, built-in, pC, 3.5 ", buffer: 16 MB, 7200 rpm, warranty 3 years
WD Caviar Blue WD2500AAKX
from $34.20 
250 GB, built-in, pC, 3.5 ", buffer: 16 MB, 7200 rpm, warranty 3 years
WD Caviar Blue WD6400AAKS
from $35.90 
640 GB, built-in, pC, 3.5 ", buffer: 16 MB, 7200 rpm, warranty 3 years
WD Caviar Blue WD5000AAKS
from $44.70 
500 GB, built-in, pC, 3.5 ", buffer: 16 MB, 7200 rpm, warranty 3 years
WD Caviar Blue WD3200AAKS
from $35.00 
320 GB, built-in, pC, 3.5 ", buffer: 16 MB, 7200 rpm, warranty 3 years
WD Caviar Blue WD2500AAJS
from $33.99 
250 GB, built-in, pC, 3.5 ", buffer: 8 MB, 7200 rpm, warranty 3 years
WD Caviar Blue WD800AAJS
from $59.00 
80 GB, built-in, pC, 3.5 ", buffer: 8 MB, 7200 rpm, warranty 3 years
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WD Blue WD40EZAZ configurations

Price for WD Blue WD40EZAZ
WD Blue WD5000AZLX 500 GB
32/7200
from $16.992 offers
WD Blue WD5000AZRZ 500 GB
64/5400
from $19.991 offer
WD Blue WD10EZEX 1 TB
64/7200
from $38.955 offers
WD Blue WD20EARZ 2 TB
64/5400
from $59.992 offers
WD Blue WD20EZBX 2 TB
256/7200
from $64.994 offers
WD Blue WD30EZRZ 3 TB
64/5400
from $123.361 offer
WD Blue WD30EZAZ 3 TB
256/5400
from $79.991 offer
WD Blue WD40EZAX 4 TB
CMR
from $79.993 offers
WD Blue WD40EZAZ 4 TB
SMR
from $83.991 offer
WD Blue WD60EZRZ 6 TB
64/5400
from $155.981 offer
WD Blue WD60EZAX 6 TB
CMR
from $114.993 offers
WD Blue WD60EZAZ 6 TB
SMR
from $125.991 offer
WD Blue WD80EAZZ 8 TB
128/5640
from $129.992 offers
WD Blue WD80EAAZ 8 TB
256/5640
from $109.991 offer
We recommendCompare using chart →
WD Blue WD40EZAX
from $79.99 
4000 GB, built-in, pC, 3.5 ", buffer: 256 MB, write CMR, 5400 rpm, warranty 2 years
WD NasWare Red WD40EFAX
from $86.99 
4000 GB, built-in, server, 3.5 ", buffer: 256 MB, write SMR, 5400 rpm, warranty 5 years
WD Purple WD40PURX
from $80.00 
4000 GB, built-in, server, 3.5 ", buffer: 64 MB, 5400 rpm, warranty 3 years
Seagate Desktop HDD ST4000DM000
from $61.00 
4000 GB, built-in, pC, 3.5 ", buffer: 64 MB, 5900 rpm, warranty 2 years
Seagate SkyHawk +Rescue ST4000VX016
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4000 GB, built-in, server, 3.5 ", buffer: 256 MB, write CMR, 5900 rpm, warranty 3 years
Seagate Enterprise Capacity 3.5 HDD ST4000NM0024
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Hitachi HGST Ultrastar 7K4000 HUS724040ALE640
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4000 GB, built-in, server, 3.5 ", buffer: 64 MB, 7200 rpm, warranty 5 years
Hitachi HGST Ultrastar 7K6000 HUS726040ALE610
from $49.99 
4000 GB, built-in, server, 3.5 ", buffer: 128 MB, 7200 rpm, warranty 5 years
HP Server SATA 7.2K 3.5" 861683-B21
from $89.95 
4000 GB, built-in, server, 3.5 ", 7200 rpm, warranty 2 years
Hitachi Deskstar NAS HDN724040ALE640
from $90.00 
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Dell SATA ATK 400-ATKN
from $75.00 
4000 GB, built-in, server, 3.5 ", 7200 rpm
Seagate BarraCuda Compute
from $29.99 
built-in, 500 - 8000 GB, 3.5 ", 5400 rpm - 7200 rpm
Filters
Models
WD Blue often compared
Seagate BarraCuda Compute
WD Blue
[WD40EZAZ]
vs
Seagate BarraCuda Compute
[ST4000DM004]
WD Gold
WD Blue
[WD40EZAZ]
vs
WD Gold
[WD8003FRYZ]
WD Black 3.5
WD Blue
[WD40EZAZ]
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WD Black 3.5" Gaming Hard Drive
[WD4005FZBX]
WD NasWare Red
WD Blue
[WD40EZAZ]
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WD NasWare Red
[WD40EFAX]
WD Purple
WD Blue
[WD40EZAZ]
vs
WD Purple
[WD40PURX]
WD Red Plus
WD Blue
[WD40EZAZ]
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WD Red Plus
[WD40EFZX]