Here are all of the models currently in the database for this manufacturer and drive width. Models are sorted into sections by platter density.

Some tips:

The total capacity of each individual model is shown beside each model number.
A platter-head ratio is shown next to the total capacity tag in brackets. It works very simply: a (3/6) ratio indicates three disks and six read/write heads. Models that "waste" some amount of their actual total capacity in order to fit into certain capacity brackets (such as a 320GB unit based on one 500GB platter and two heads) are marked accordingly as [short-stroked].
Miscellaneous details of possible interest (unusual rotational speeds, strange marketing decisions, and so on) are noted if deemed necessary.
The RE (historically "RAID Edition"), short-lived Gold, and Se lines are "nearline" models with longer warranties and MTBFs than other WD drives, and include server-class features like TLER (Time-Limited Error Recovery). The Blacks and Reds are similar to the above (often to the point of using the same chassis), but the former are trimmed-down for expensive consumer PCs, while the latter go for small NAS setups that run few drives at once.
Mainstream and niche 3.5" WD drives (Blue, Purple, etc) are listed on a separate page.
Models that are essentially relabeled Hitachi/HGST designs are marked accordingly.


This section was last updated on 04/11/2019.


80-83GB/platter Section (all drives under here use platters that can hold 80-83GB of data apiece.)

Caviar RE (7200RPM, 8MB cache, ATA-100 interface)

WD1600SB-xxKBAx/xxKBCx/xxRFAx 160GB (2/4)
WD2500SB-xxKBAx/xxKBCx/xxRFAx 250GB (3/6)


Caviar RE (7200RPM, 8MB cache, SATA-150 interface)

WD1600SD-xxKCBx/xxKCCx 160GB (2/4)
WD2500SD-xxKCBx/xxKCCx 250GB (3/6)


Caviar RE16 (7200RPM, 16MB cache, SATA-300 interface)

WD1600YS-xxSHBx 160GB (2/4)
WD2500YS-xxSHBx 250GB (3/6)



100-107GB/platter Section (all drives under here use platters that can hold 100-107GB of data apiece.)

Caviar RE (7200RPM, 8MB cache, ATA-100 interface)

WD3200SB-xxKMAx 320GB (3/6)


Caviar RE (7200RPM, 8MB cache, SATA-150 interface)

WD3200SD-xxKNBx 320GB (3/6)


Caviar RE16 (7200RPM, 16MB cache, SATA-300 interface)

WD3200YS-xxPGBx 320GB (3/6)


Caviar RE2 (7200RPM, 16MB cache, SATA-150 interface)

WD4000YR-xxPLBx 400GB (4/8)


Caviar RE2 (7200RPM, 16MB cache, SATA-300 interface)

WD4000YS-xxMPBx 400GB (4/8)



125GB/platter Section (all drives under here use platters that can hold 125GB of data apiece.)

Caviar RE2 (7200RPM, 16MB cache, SATA-300 interface)

WD5000YS-xxMPBx 500GB (4/8)



160-188GB/platter Section (all drives under here use platters that can hold 160-188GB of data apiece.)

RE2 (7200RPM, 16MB cache, SATA-300 interface)

WD801ABYS-xxC0Ax 80GB (1/1)
WD1601ABYS-xxC0Ax 160GB (1/2)
WD2501ABYS-xxB9Ax 250GB (2/3)
WD3201ABYS-xxB9Ax 320GB (2/4)
WD4000ABYS-xxTNAx 400GB (3/5)
WD4001ABYS-xxYNAx 400GB (3/5)
WD5000ABYS-xxTNAx 500GB (3/6)
WD5001ABYS-xxYNAx 500GB (3/6)
WD7500AYYS-xxRCAx 750GB (4/8)



250GB/platter Section (all drives under here use platters that can hold 250GB of data apiece.)

RE2-GP (5400RPM, 16MB cache, SATA-300 interface)

WD5000ABPS-xxZZBx 500GB (2/4)
WD7500AYPS-xxZKBx 750GB (3/6)
WD1000FYPS-xxZKBx 1TB (4/8)



320-375GB/platter Section (all drives under here use platters that can hold 320-375GB of data apiece.)

RE3 (7200RPM, 16MB cache, SATA-300 interface)

WD1602ABYS-xxB7Ax 160GB (1/1)
WD2502ABYS-xxB7Ax 250GB (1/2 [short-stroked])
WD3202ABYS-xxB7Ax 320GB (1/2)
WD5002ABYS-xxB1Bx 500GB (2/3)


RE3 (7200RPM, 32MB cache, SATA-300 interface)

WD7502ABYS-xxA6Bx/xxW8Bx 750GB (3/5 [short-stroked])
WD1002FBYS-xxA6Bx/xxW8Bx 1TB (3/6)


Caviar Black (7200RPM, 32MB cache, SATA-300 interface)

WD5001AALS-xxJ7Bx/xxL3Bx 500GB (2/3)
WD6401AALS-xxJ7Bx/xxL3Bx/xxE8Bx 640GB (2/4)
WD7501AALS-xxJ7Bx/xxE8Bx 750GB (3/5 [short-stroked])
WD1001FALS-xxJ7Bx/xxE8Bx/xxK1Bx/xxU9Bx 1TB (3/6)



400GB/platter Section (all drives under here use platters that can hold 400GB of data apiece.)

Re (7200RPM, 64MB cache, SATA-600 interface)

WD200MFYYZ-xxD45Bx 2TB (5/10)



500GB/platter Section (all drives under here use platters that can hold 500GB of data apiece.)

RE4 (7200RPM, 64MB cache, SATA-300 interface)

WD2503ABYX-xxWERAx 250GB (1/1)
WD5003ABYX-xxWERAx 500GB (1/2)
WD1003FBYX-xxY7Bx 1TB (2/4)
WD1503FYYS-xxW0Bx 1.5TB (3/6)
WD2003FYYS-xxW0Bx 2TB (4/8)


RE4-GP (5400RPM, 64MB cache, SATA-300 interface)

WD1502FYPS-xxW3Bx 1.5TB (3/6)
WD2002FYPS-xxW3Bx/xxU1Bx 2TB (4/8)


RE SAS / S35 (7200RPM, 32MB cache, SAS-600 interface)

WD1000FYYG-xxA21Vx 1TB (2/4)
WD2000FYYG-xxA21Vx 2TB (4/8)


Re (7200RPM, 64MB cache, SATA-600 interface)

WD2503ABYZ-xx1FAx 250GB (1/1)
WD5003ABYZ-xx1FAx 500GB (1/2)
WD1003FBYZ-xx0FBx 1TB (2/4)
WD2000FYYZ-xxUL1Bx 2TB (4/8)


Re (7200RPM, 32MB cache, SAS-600 interface)

WD1001FYYG-xxSL3Wx 1TB (2/4)
WD2001FYYG-xxSL3Wx 2TB (4/8)


Se (7200RPM, 64MB cache, SATA-600 interface, Advanced Format)

WD2000F9YZ-xxN20Lx 2TB (4/8)


Caviar Black (7200RPM, 32MB cache, SATA-300 interface)

WD5001AALS-xxE3Ax/xxLWTAx/xxF41Ax 500GB (1/2)
WD6401AALS-xxE3Ax 640GB (2/3 [short-stroked])
WD7501AALS-xxE3Ax 750GB (2/3)
WD1001FALS-xxE3Ax/xxY6Ax 1TB (2/4)


Caviar Black (7200RPM, 64MB cache, SATA-300 interface)

WD7501AAES-xxZ2Ax/xxW7Ax 750GB (2/3)
WD1001FAES-xxZ2Ax/xxW7Ax 1TB (2/4)
WD1501FASS-xxU0Bx/xxW2Bx 1.5TB (3/6)
WD2001FASS-xxU0Bx/xxW2Bx 2TB (4/8)


Caviar Black (7200RPM, 32MB cache, SATA-600 interface)

WD5002AALX-32Z3A0/xxJ37Ax 500GB (1/2)


Caviar Black (7200RPM, 64MB cache, SATA-600 interface)

WD5002AAEX-xxZ3Ax 500GB (1/2)
WD6402AAEX-xxZ3Ax/xxY9Ax 640GB (2/3 [short-stroked])
WD7502AAEX-xxZ3Ax/xxY9Ax 750GB (2/3)
WD1002FAEX-xxZ3Ax/xxY9Ax/xx7BAx 1TB (2/4)
WD1502FAEX-xx7BAx 1.5TB (3/6)
WD2002FAEX-xx7BAx 2TB (4/8)


Black (7200RPM, 64MB cache, SATA-600 interface, Advanced Format)

WD2002FAEX-xxMJRAx 2TB (4/8)
WD2003FZEX-xxZ4SAx 2TB (4/8)


Red Pro (7200RPM, 64MB cache, SATA-600 interface)

WD2001FFSX-xxJNUNx 2TB (4/8)



600GB/platter Section (all drives under here use platters that can hold 600GB of data apiece.)

Re (7200RPM, 64MB cache, SATA-600 interface)

WD3000FYYZ-xxUL1Bx 3TB (5/10)


Re (7200RPM, 32MB cache, SAS-600 interface)

WD3001FYYG-xxSL3Wx 3TB (5/10)


Se (7200RPM, 64MB cache, SATA-600 interface, Advanced Format)

WD3000F9YZ-xxN20Lx 3TB (5/10)


Black (7200RPM, 64MB cache, SATA-600 interface, Advanced Format)

WD3001FAEX-xxMJRAx 3TB (5/10)
WD3003FZEX-xxZ4SAx 3TB (5/10)


Red Pro (7200RPM, 64MB cache, SATA-600 interface)

WD3001FFSX-xxJNUNx 3TB (5/10)



667-750GB/platter Section (all drives under here use platters that can hold 667-750GB of data apiece.)

Red Pro (7200RPM, 64MB cache, SATA-600 interface)

WD2002FFSX-xxPF8Nx 2TB (3/6)



800GB/platter Section (all drives under here use platters that can hold 800GB of data apiece.)

Re (7200RPM, 64MB cache, SATA-600 interface)

WD4000FYYZ-xxUL1Bx 4TB (5/10)


Re (7200RPM, 32MB cache, SAS-600 interface)

WD4001FYYG-xxSL3Wx 4TB (5/10)


Se (7200RPM, 64MB cache, SATA-600 interface, Advanced Format)

WD4000F9YZ-xxN20Lx 4TB (5/10)


Black (7200RPM, 64MB cache, SATA-600 interface, Advanced Format)

WD4001FAEX-xxMJRAx 4TB (5/10)
WD4003FZEX-xxZ4SAx 4TB (5/10)


Red Pro (7200RPM, 64MB cache, SATA-600 interface, Advanced Format)

WD4001FFSX-xxJNUNx 4TB (5/10)



1TB/platter Section (all drives under here use platters that can hold 1TB of data apiece.)

Re (7200RPM, 128MB cache, SATA-600 interface)

WD1004FBYZ-xxYCBBx 1TB (1/2)
WD2004FBYZ-xxYCBBx 2TB (2/4)


Re (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)

WD5001FSYZ-xxSS7Bx 5TB (5/10)


Gold (7200RPM, 128MB cache, SATA-600 interface)

WD1005FBYZ-xxYCBBx 1TB (1/2)
WD2005FBYZ-xxYCBBx 2TB (2/4)
WD4002FYYZ-xxB7CBx 4TB (4/8)*
*Note: Based on the equivalent HGST Ultrastar 7K6000 model, but with 512-byte sectors.


Se (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)

WD1002F9YZ-xxH1JLx 1TB (1/2)
WD5001F9YZ-xxZXNLx 5TB (5/10)


Black (7200RPM, 64MB cache, SATA-600 interface, Advanced Format)

WD5003AZEX-xxMK2Ax/xxK3CAx/xxK1GAx/xxRKKAx 500GB (1/1)
WD1003FZEX-xxMK2Ax/xxK3CAx 1TB (1/2)
WD2003FZEX-xxSRLAx 2TB (2/4)


Black (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)

WD4004FZWX-xxGBGBx 4TB (4/8)*
WD5001FZWX-xxZHUAx/xxA2VAx 5TB (5/10)
*Note: Based on the equivalent HGST Ultrastar 7K6000 model.


Red (5400RPM, 64MB cache, SATA-600 interface, Advanced Format)

WD10EFRX-xxJCSNx/xxPJCNx/xxFYTNx 1TB (1/2)
WD20EFRX-xxAX9Nx/xxEUZNx 2TB (2/4) OR (3/6 [667GB+/platter])*
WD30EFRX-xxAX9Nx/xxEUZNx 3TB (3/6)
WD40EFRX-xxWT0Nx 4TB (4/8)
*Note: WD being annoying by introducing inferior drives into the market without changing the model code. Just like the new Seagate 2TB drives, be prepared to roll the dice if you purchase one of these online. You'll either get the slower three-platter variant (which weighs around 640 grams) or the "perfect" two-platter one, at least until WD gets its 1TB platter production up to spec.


Red (5700RPM, 64MB cache, SATA-600 interface, Advanced Format)

WD50EFRX-xxMYMNx 5TB (5/10)


Red Pro (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)

WD4002FFWX-xxTZ4Nx 4TB (4/8)*
WD5001FFWX-xxH90Nx 5TB (5/10)
*Note: Based on the equivalent HGST Ultrastar 7K6000 model.



1.2TB/platter Section (all drives under here use platters that can hold 1.2TB of data apiece.)

Re (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)

WD6001FSYZ-xxSS7Bx 6TB (5/10)


Re (7200RPM, 128MB cache, SATA-600 interface, 4K Native)

WD6001FXYZ-xxSUYBx 6TB (5/10)


Re+ (5760RPM, 128MB cache, SATA-600 interface)

WD6005FRPZ-xxS9PBx 6TB (5/10)


Gold (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)

WD6002FRYZ-xxWD5Bx 6TB (5/10)*
*Note: Based on the equivalent HGST Ultrastar 7K6000 model.


Se (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)

WD6001F9YZ-xxYUWLx 6TB (5/10)


Black (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)

WD6001FZWX-xxZHUAx/xxA2VAx 6TB (5/10)
WD6002FZWX-xxGBGBx 6TB (5/10)*
*Note: Based on the equivalent HGST Ultrastar 7K6000 model.


Red (5700RPM, 64MB cache, SATA-600 interface, Advanced Format)

WD60EFRX-xxMYMNx/xxTGBNx/xxL0BNx 6TB (5/10)


Red Pro (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)

WD6001FFWX-xxZ39Nx 6TB (5/10)
WD6002FFWX-xxTZ4Nx 6TB (5/10)*
*Note: Based on the equivalent HGST Ultrastar 7K6000 model.



1.33TB/platter Section (all drives under here use platters that can hold 1.33TB of data apiece.)

Black (7200RPM, 256MB cache, SATA-600 interface, Advanced Format)

WD4005FZBX-xxK5WBx 4TB (3/6)*
*Note: Based on the equivalent HGST Ultrastar 7K6 / DC HC310 model.


Red (5400RPM, 64MB cache, SATA-600 interface, Advanced Format)

WD40EFRX-xxN32Nx 4TB (3/6)


Red Pro (7200RPM, 256MB cache, SATA-600 interface, Advanced Format)

WD4003FFBX-xxMU3Nx 4TB (3/6)*
*Note: Based on the equivalent HGST Ultrastar 7K6 / DC HC310 model.



1.5-1.6TB/platter Section (all drives under here use platters that can hold 1.5-1.6TB of data apiece.)

Black (7200RPM, 256MB cache, SATA-600 interface, Advanced Format)

WD6003FZBX-xxK5WBx 6TB (4/8)*
*Note: Based on the equivalent HGST Ultrastar 7K6 / DC HC310 model.


Red (5400RPM, 256MB cache, SATA-600 interface, Advanced Format)

WD80EFAX-xxKNBNx 8TB (5/10)*
*Note: Appears to be based on the HGST Ultrastar 7K8 / DC HC320, but with a lower spindle speed. Meanwhile, a variation with -xxLHPNx identifier and noticeably smoother lid certainly contains helium, as does the similarly-named WD80EFZX.


Red Pro (7200RPM, 256MB cache, SATA-600 interface, Advanced Format)

WD6003FFBX-xxMU3Nx 6TB (4/8)*
WD8003FFBX-xxB9ANx 8TB (5/10)**
*Note: Based on the equivalent HGST Ultrastar 7K6 / DC HC310 model.
**Note: Based on the equivalent HGST Ultrastar 7K8 / DC HC320 model.


"White Label" (5400RPM, 256MB cache, SATA-600 interface, Advanced Format)

WD80EMAZ-xxM9AAx 8TB (5/10)*
*Note: Undocumented model found in some WD external HDD products. Various net anecdotes point to it as being similar in specs to the Red WD80EFAX above. A helium-filled variant with -xxWJTAx identifier code does exist.



2TB/platter Section (all drives under here use platters that can hold 2TB of data apiece.)

Red (5400RPM, 256MB cache, SATA-600 interface, Advanced Format, Shingled Magnetic Recording)

WD20EFAX-xx????x 2TB (1/2?)
WD60EFAX-xxSHWNx 6TB (3/6)
Note: These are brand new as of March 2019 and certainly aren't helium-based. (Note the likely-similar Blue EZAZ models in the other section.) Some correspondence with a reader and WD Support confirmed SMR and three platters inside the 6TB EFAX, of which the case design is unlike anything I've seen before from WD. (The same correspondence also revealed a weight of 567 grams.) It would seem according to other online sources that the 2TB model also employs SMR.



Posted by RML527 at 1:46 PM
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