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:
All displayed data capacities follow the storage industry's standardized "1 megabyte = 1,000,000 bytes" rule.
All capacity values are rounded: "40GB" and "1.33TB" may actually be 42,646.25[...]MB and 1333.5666[...]GB. Only the manufacturer knows the exact capacity per platter.
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" a substantial 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 are mentioned at my discretion.
The RE (historically "RAID Edition"), 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. The not-publicly-documented "Internal Use" or "Not For Resale" (often referred to colloquially as "white label") models are seen in My Book, Elements, and other external drives made since the late-2010s, while "OEM" models are unique to certain other manufacturers' external products. The Ae series that would otherwise live on this page is left off the site, as ten heads for five platters is standard across every existing model.
Models that are essentially relabeled Hitachi/HGST designs are marked accordingly.
Mainstream and niche 3.5" WD drives (Blue, Purple, etc) are listed in a separate page.
This page was last updated on 2024/01/23.
80-83GB/platter Section (all drives under here use platters that can hold 80 or 83GB of data apiece.)
Caviar RE (7200RPM, 8MB cache, ATA-100 interface)
WD1200SB-xxKBAx/xxRFAx 120GB (2/3)
WD1600SB-xxKBAx/xxKBCx/xxRFAx 160GB (2/4)
WD2500SB-xxKBAx/xxKBCx/xxRFAx 250GB (3/6)
Caviar RE (7200RPM, 8MB cache, SATA-150 interface)
WD1200SD-xxKCBx/xxKCCx 120GB (2/3)
WD1600SD-xxKCBx/xxKCCx 160GB (2/4)
WD2500SD-xxKCBx/xxKCCx 250GB (3/6)
Caviar RE16 (7200RPM, 16MB cache, SATA-150 interface)
WD1600YD-xxNVBx 160GB (2/4)
WD2500YD-xxNVBx 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 or 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, 167, or 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)
320-334GB/platter Section (all drives under here use platters that can hold 320 or 334GB of data apiece.)
RE (7200RPM, 16MB cache, SATA-300 interface)
WD1602ABKS-xxN8Ax 160GB (1/1)
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/xxP1Bx 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 1TB (3/6)
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)
RE SAS / S35 (7200RPM, 32MB cache, SAS-600 interface)
WD1000FYYG-xxA21Vx 1TB (2/4)
WD2000FYYG-xxA21Vx 2TB (4/8)
RE4-GP (5400RPM, 64MB cache, SATA-300 interface)
WD1502FYPS-xxW3Bx 1.5TB (3/6)
WD2002FYPS-xxW3Bx/xxU1Bx 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)
WD200MFYYZ-xxD45Bx 2TB (4/8?)*
*Note: Platter density for this is a mystery; the datasheets don't provide answers (other than higher power draw than the related WD2000FYYZ), and the drives are uncommon in real life. The same applies to the WD200MFYYG below.
Re (7200RPM, 32MB cache, SAS-600 interface)
WD200MFYYG-xx????x 2TB (4/8?)
Caviar Black (7200RPM, 32MB cache, SATA-300 interface)
WD5001AALS-xxE3Ax/xxF41Ax/xxLWTAx 500GB (1/2)
WD6401AALS-xxE3Ax 640GB (2/3 [short-stroked])
WD7501AALS-xxE3Ax 750GB (2/3)
WD1001FALS-xxE3Ax/xxY6Ax/xxU9Bx/xx3AAx 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)
667-800GB/platter Section (all drives under here use platters that can hold 667, 750, or 800GB of data apiece.)
Re (7200RPM, 64MB cache, SATA-600 interface)
WD2000FYYZ-xxUL1Bx 2TB (3/6)
WD3000FYYZ-xxUL1Bx 3TB (4/8)
WD4000FYYZ-xxUL1Bx 4TB (5/10)
WD4000FDYZ-xxYA5Bx 4TB (Self-Encryption) (5/10)
Re (7200RPM, 32MB cache, SAS-600 interface)
WD1001FYYG-xxSL3Wx 1TB (2/3)
WD1001FDYG-xxNCAWx 1TB (Self-Encryption) (2/3)
WD2001FYYG-xxSL3Wx 2TB (3/6)
WD3001FYYG-xxSL3Wx 3TB (4/8)
WD3001FDYG-xxNCAWx 3TB (Self-Encryption) (4/8)
WD4001FYYG-xxSL3Wx 4TB (5/10)
Se (7200RPM, 64MB cache, SATA-600 interface, Advanced Format)
WD2000F9YZ-xxN20Lx 2TB (3/6)
WD2000F9MZ-xxNVPLx 2TB (3/6)
WD3000F9YZ-xxN20Lx 3TB (4/8)
WD3000F9MZ-xxNVPLx 3TB (4/8)
WD4000F9YZ-xxN20Lx 4TB (5/10)
WD4000F9MZ-xxNVPLx 4TB (5/10)
Note: The "F9MZ" models aren't in public WD datasheets. In an Adaptec compatibility report, the 4TB one is listed as a SED (self-encrypting drive); this might be the main difference between F9MZs and F9YZs.
Black (7200RPM, 64MB cache, SATA-600 interface)
WD2002FAEX-xxMJRAx 2TB (3/6)
WD3001FAEX-xxMJRAx 3TB (4/8)
WD4001FAEX-xxMJRAx 4TB (5/10)
Black (7200RPM, 64MB cache, SATA-600 interface, Advanced Format)
WD2003FZEX-xxZ4SAx 2TB (3/6)
WD3003FZEX-xxZ4SAx 3TB (4/8)
WD4003FZEX-xxZ4SAx 4TB (5/10)
Red Pro (7200RPM, 64MB cache, SATA-600 interface, Advanced Format)
WD2001FFSX-xxJNUNx 2TB (3/6)
WD3001FFSX-xxJNUNx 3TB (4/8)
WD4001FFSX-xxJNUNx 4TB (5/10)
T3 (5400RPM, 64MB cache?, SATA-300 interface, Advanced Format)
WD2009FYPX-xxAAMBx 2TB (3/6)
WD3009FYPX-xxAAMBx 3TB (4/8)
Note: Not publicly documented. The labelled R/N of 771716 is a match for certain 2~3TB Greens (for example WD30EZRX-xxAZ6Bx and WD30EZRS-xxKEZBx), which share the same chassis (limited to eight heads max) and lid design.
1.0TB/platter Section (all drives under here use platters that can hold 1.0TB of data apiece.)
Re (7200RPM, 128MB cache, SATA-600 interface)
WD1004FBYZ-xxYCBBx 1TB (1/2)
WD2004FBYZ-xxYCBBx 2TB (2/4)
Gold (7200RPM, 128MB cache, SATA-600 interface)
WD1005FBYZ-xxYCBBx 1TB (1/2)
WD1005VBYZ-xxRRWBx 1TB (1/2)
WD2005FBYZ-xxYCBBx 2TB (2/4)
WD2005VBYZ-xxRRWBx 2TB (2/4)
WD4002FYYZ-xxB7CBx 4TB (4/8)*
*Note: Based closely on the HGST Ultrastar 7K6000, given the identical "US7SAK400" Type code and obvious exterior similarities, but apparently with native 512-byte sectors.
Note: Units with model numbers containing "VBYZ" are supported by WD only within mainland China.
Se (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)
WD1002F9YZ-xxH1JLx 1TB (1/2)
Black (7200RPM, 64MB cache, SATA-600 interface, Advanced Format)
WD5003AZEX-xxRKKAx/xxK1GAx/xxMK2Ax/xxK3CAx/xxRLFAx 500GB (1/1)
WD1003FZEX-xxMK2Ax/xxK3CAx/xxRLFAx 1TB (1/2)
WD2003FZEX-xxSRLAx 2TB (2/4)
Black (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)
WD4004FZWX-xxGBGBx 4TB (4/8)*
*Note: Based closely on the HGST Ultrastar 7K6000, given the identical "US7SAK400" Type code and obvious exterior similarities.
Red / Red Plus (5400RPM, 64MB cache, SATA-600 interface, Advanced Format)
WD10EFRX-xxJCSNx/xxPJCNx/xxFYTNx 1TB (1/2)
WD20EFRX-xxAX9Nx/xxEUZNx 2TB (2/4)*
WD30EFRX-xxAX9Nx/xxEUZNx 3TB (3/6)
WD40EFRX-xxWT0Nx 4TB (4/8)
*Note: Be prepared to roll the dice if you purchase one of these; there’s both a three-platter variant (weighing around 640g) and the "perfect" two-platter one in existence, sharing the same chassis and identifier codes.
Red Pro (7200RPM, 64MB cache, SATA-600 interface, Advanced Format)
WD2002FFSX-xxPF8Nx 2TB (2/4)
Red Pro (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)
WD4002FFWX-xxTZ4Nx 4TB (4/8)*
*Note: Based closely on the HGST Ultrastar 7K6000, given the identical "US7SAK400" Type code and obvious exterior similarities.
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)
WD5001FSYZ-xxSS7Bx 5TB (5/9 [short-stroked])
WD6001FSYZ-xxSS7Bx 6TB (5/10)
Re (7200RPM, 128MB cache, SATA-600 interface, 4K Native)
WD5001FXYZ-xx????x 5TB (5/9 [short-stroked])
WD6001FXYZ-xxSUYBx 6TB (5/10)
Re+ (5760RPM, 128MB cache, SATA-600 interface, Advanced Format)
WD5005FRPZ-xx????x 5TB (5/9 [short-stroked])
WD6005FRPZ-xxS9PBx 6TB (5/10)
Gold (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)
WD6002FRYZ-xxWD5Bx 6TB (5/10)*
*Note: Based closely on the HGST Ultrastar 7K6000, given the identical "US7SAK600" Type code and obvious exterior similarities.
Se (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)
WD5001F9YZ-xxZXNLx 5TB (5/9 [short-stroked])
WD6001F9YZ-xxYUWLx 6TB (5/10)
Black (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)
WD5001FZWX-xxZHUAx/xxA2VAx 5TB (5/9 [short-stroked])
WD6001FZWX-xxZHUAx/xxA2VAx 6TB (5/10)
WD6002FZWX-xxGBGBx 6TB (5/10)*
*Note: Based closely on the HGST Ultrastar 7K6000, given the identical "US7SAK600" Type code and obvious exterior similarities.
Red / Red Plus (5700RPM, 64MB cache, SATA-600 interface, Advanced Format)
WD50EFRX-xxMYMNx/xxL0BNx 5TB (5/9 [short-stroked])
WD60EFRX-xxMYMNx/xxTGBNx/xxL0BNx 6TB (5/10)
Red Pro (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)
WD5001FFWX-xxZ39Nx/xxH90Nx 5TB (5/9 [short-stroked])
WD6001FFWX-xxZ39Nx 6TB (5/10)
WD6002FFWX-xxTZ4Nx 6TB (5/10)*
*Note: Based closely on the HGST Ultrastar 7K6000, given the identical "US7SAK600" Type code and obvious exterior similarities.
1.33TB/platter Section (all drives under here use platters that can hold 1.33TB of data apiece.)
Gold (7200RPM, 256MB cache, SATA-600 interface, Advanced Format)
WD4003FRYZ-xxF0DBx 4TB (3/6)*
WD4003VRYZ-xxJCFBx 4TB (3/6)*
*Note: Based closely on the HGST Ultrastar DC HC310 (7K6), given the identical "US7SAN4T0" R/N and obvious exterior similarities.
Note: Units with model numbers containing "VRYZ" are supported by WD only within mainland China.
Black (7200RPM, 256MB cache, SATA-600 interface, Advanced Format)
WD4005FZBX-xxK5WBx 4TB (3/6)*
*Note: Based closely on the HGST Ultrastar DC HC310 (7K6), given the identical "US7SAN4T0" R/N and obvious exterior similarities.
Red / Red Plus (5400RPM, 64MB cache, SATA-600 interface, Advanced Format)
WD30EFRX-xxN32Nx 3TB (3/5 [short-stroked])
WD40EFRX-xxN32Nx 4TB (3/6)
Red Pro (7200RPM, 256MB cache, SATA-600 interface, Advanced Format)
WD4003FFBX-xxMU3Nx 4TB (3/6)*
*Note: Based closely on the HGST Ultrastar DC HC310 (7K6), given the identical "US7SAN4T0" R/N and obvious exterior similarities.
"Internal Use" (5400RPM, 64MB cache, SATA-600 interface, Advanced Format)
WD40EMRX-xxUZ0Nx 4TB (3/6)
1.50-1.67TB/platter Section (all drives under here use platters that can hold 1.50, 1.60, or 1.67TB of data apiece.)
Gold (7200RPM, 256MB cache, SATA-600 interface, Advanced Format)
WD6003FRYZ-xxF0DBx 6TB (4/8)*
WD6003VRYZ-xxJCFBx 6TB (4/8)*
WD8004FRYZ-xxVAEBx 8TB (5/10)**
WD8004VRYZ-xxZ2CBx 8TB (5/10)**
WD102KRYZ-xxA5ABx 10TB (6/12)***
WD102VRYZ-xxA5DBx 10TB (6/12)***
*Note: Based closely on the HGST Ultrastar DC HC310 (7K6), given the identical "US7SAN6T0" R/N and obvious exterior similarities.
**Note: Based closely on the HGST Ultrastar DC HC320 (7K8), given the identical "US7SAN8T0" R/N and obvious exterior similarities.
***Note: Based closely on the WD Ultrastar DC HC330, given the identical "UVXHA9" R/N and obvious exterior similarities.
Note: Units with model numbers containing "VRYZ" are supported by WD only within mainland China.
Black (7200RPM, 128MB cache, SATA-600 interface, Advanced Format)
WD6004FZWX-xxBKVAx 6TB (4/8)
WD8002FZWX-xxBKUAx 8TB (5/10)
Note: These physically resemble the HGST Ultrastar DC HC320 (7K8), but they carry a WD-style R/N of 810032, and are distinct in overall spec.
Black (7200RPM, 256MB cache, SATA-600 interface, Advanced Format)
WD6003FZBX-xxK5WBx 6TB (4/8)*
WD6003FZBX-xxGXABx 6TB (4/8)**
WD8001FZBX-xxASYAx 8TB (5/10)**
WD101FZBX-xxATAAx 10TB (6/12)***
*Note: Based closely on the HGST Ultrastar DC HC310 (7K6), given the identical "US7SAN6T0" R/N and obvious exterior similarities.
**Note: Based closely on the HGST Ultrastar DC HC320 (7K8), given the identical "US7SAN8T0" R/N and obvious exterior similarities.
**Note 2: A variant of the WD6003FZBX with -xxGXABx identifier may contain more heads, given the output of WD's online warranty checker.
***Note: Based closely on the WD Ultrastar DC HC330, given the identical "UVXHA9" R/N and obvious exterior similarities.
Red Plus (5400RPM, 128MB cache, SATA-600 interface, Advanced Format)
WD20EFZX-xxAWUNx 2TB (2/3 [short-stroked])
WD30EFZX-xxAWUNx 3TB (2/4 [short-stroked])
WD40EFZX-xxAWUNx 4TB (3/5)*
*Note: Units with more heads may exist, given the output of WD's online warranty checker.
Red Plus (5640RPM, 128MB cache, SATA-600 interface, Advanced Format)
WD60EFZX-xxB3FNx 6TB (4/8)
WD80EFZX-xxB3CNx 8TB (5/10)*
WD80EFZZ-xxBTXNx 8TB (5/10)
*Note: A variation with -xxUW8Nx identifier and noticeably smoother lid contains helium, and may contain a different count of heads and platters.
Note: These physically resemble the HGST Ultrastar DC HC320 (7K8), but they carry a WD-style R/N of 810032, and are distinct in overall spec.
Red / Red Plus (7200RPM, 256MB cache, SATA-600 interface, Advanced Format)
WD80EFAX-xxKNBNx 8TB (5/10)*
WD101EFAX-xxLDBNx 10TB (6/12)**
*Note: Based closely on the HGST Ultrastar DC HC320 (7K8), given the identical "US7SAN8T0" R/N and obvious exterior similarities.
*Note 2: A variation with -xxLHPNx identifier and noticeably smoother lid contains helium, and may contain a different count of heads and platters.
**Note: Based closely on the WD Ultrastar DC HC330, given the identical "UVXHA9" R/N and obvious exterior similarities.
Note: These models usually ID themselves as 5400RPM when sent the ATA IDENTIFY_DEVICE command (done by CrystalDiskInfo among other popular utilities). However, the amperage ratings on their labels (5V 0.7A, 12V 0.9A) being the same as the mentioned Ultrastar models', along with the results of acoustic frequency measurements, suggest 7200RPM spindles.
Red Plus (7200RPM, 256MB cache, SATA-600 interface, Advanced Format)
WD80EFBX-xxAZZNx 8TB (5/10)*
WD101EFBX-xxB0ANx 10TB (6/12)**
*Note: Based closely on the HGST Ultrastar DC HC320 (7K8), given the identical "US7SAN8T0" R/N and obvious exterior similarities.
**Note: Based closely on the WD Ultrastar DC HC330, given the identical "UVXHA9" R/N and obvious exterior similarities.
Note: The public consternation over the insincere "5400RPM" labelling of the WD80EFAX and WD101EFAX above lead to these replacement EFBXes, which should otherwise be identical. Fortunately (or not, depending on your POV), you're still dealing with 7200RPM units.
Red Pro (7200RPM, 256MB cache, SATA-600 interface, Advanced Format)
WD6003FFBX-xxMU3Nx 6TB (4/8)*
WD8003FFBX-xxB9ANx 8TB (5/10)**
WD102KFBX-xxM95Nx 10TB (6/12)***
*Note: Based closely on the HGST Ultrastar DC HC310 (7K6), given the identical "US7SAN6T0" R/N and obvious exterior similarities.
**Note: Based closely on the HGST Ultrastar DC HC320 (7K8), given the identical "US7SAN8T0" R/N and obvious exterior similarities.
***Note: Based closely on the WD Ultrastar DC HC330, given the identical "UVXHA9" R/N and obvious exterior similarities.
"Internal Use" (5640RPM, 128MB cache, SATA-600 interface, Advanced Format)
WD80EMZZ-xxB4FBx 8TB (5/10)*
*Note: A variation with -xxTBGAx identifier and noticeably smoother lid contains helium, and may contain a different count of heads and platters.
Note: These physically resemble the HGST Ultrastar DC HC320 (7K8), but they carry a WD-style R/N of 810032, and are distinct in overall spec.
"Internal Use" (7200RPM, 256MB cache, SATA-600 interface, Advanced Format)
WD80EMAZ-xxM9AAx 8TB (5/10)*
WD80EDAZ-xxTA3Ax 8TB (5/10)*
WD80EDBZ-xxB0ZAx 8TB (5/10)*
WD101EMAZ-xxG7DAx 10TB (6/12)**
WD101EDAZ-xxY7KAx 10TB (6/12)**
WD101EDBZ-xxB1DAx 10TB (6/12)**
*Note: Based closely on the HGST Ultrastar DC HC320 (7K8), given the identical "US7SAN8T0" R/N and obvious exterior similarities.
*Note 2: A variation of the WD80EMAZ with -xxWJTAx identifier and noticeably smoother lid contains helium, and may contain a different count of heads and platters.
**Note: Based closely on the WD Ultrastar DC HC330, given the identical "UVXHA9" R/N and obvious exterior similarities.
Note: Model numbers with a "D" three characters from the right signify AES-256 self-encryption support.
Note 2: The not-EDBZ models usually ID themselves as 5400RPM when sent the ATA IDENTIFY_DEVICE command (done by CrystalDiskInfo among other popular utilities). However, the amperage ratings on their labels (5V 0.7A, 12V 0.9A) being the same as the mentioned Ultrastar models', along with the results of acoustic frequency measurements, suggest 7200RPM spindles.
OEM / "White Label" (5400RPM, 64MB cache, SATA-600 interface, Advanced Format)
WD20EARX-xxAVNBx 2TB (2/3 [short-stroked])
WD30EARX-xxAVNBx 3TB (2/4 [short-stroked])
WD40EARX-xxAVNBx 4TB (3/5)*
*Note: Units with more heads may exist, given the output of WD's online warranty checker.
OEM / "White Label" (5640RPM, 128MB cache, SATA-600 interface, Advanced Format)
WD60EAZX-xxB3MBx 6TB (4/8)
2.0TB/platter Section (all drives under here use platters that can hold 2.0TB of data apiece.)
Red (5400RPM, 256MB cache, SATA-600 interface, Advanced Format, Shingled Magnetic Recording)
WD20EFAX-xxFB5Nx/xxB2RNx 2TB (1/2)
WD30EFAX-xxJH4Nx 3TB (2/3)*
WD40EFAX-xxJH4Nx 4TB (2/4)*
WD60EFAX-xxSHWNx/xxJH4Nx 6TB (3/6)
*Note: Units with more heads may exist, given the output of WD's online warranty checker.
Note: From around March 2019 when these first came out, the use of drive-managed SMR could only be guessed, with support for the TRIM command being the most telling indication. Only around a year later did WD publicly acknowledge the secretive use of shingles in these and a few other consumer-facing models.
"Internal Use" (5400RPM, 256MB cache, SATA-600 interface, Advanced Format, Shingled Magnetic Recording)
WD20EMAZ-xxFUFBx 2TB (1/2)
WD30EDAZ-xxSLVBx 3TB (2/3)
WD40EMAX-xxCX6Nx 4TB (2/4)
WD40EMAZ-xxTKPBx/xxLW3Bx/xxZRJBx 4TB (2/4)
WD40EDAZ-xxSLVBx/xxU78Bx 4TB (2/4)
WD60EMAZ-xxTKPBx/xxLW3Bx 6TB (3/6)
WD60EDAZ-xxBMZBx/xxU78Bx 6TB (3/6)
Note: Model numbers with a "D" three characters from the right signify AES-256 self-encryption support.
Red Plus (CRMLRP2L) (5400RPM, 64MB cache, SATA-600 interface, Advanced Format)
WD10EFPX-xx???Nx 1TB (1/1)
WD20EFPX-xxC4TNx 2TB (1/2)
Red Plus (VENRP2LP) (5400RPM, 256MB cache, SATA-600 interface, Advanced Format)
WD30EFPX-xxC6CNx 3TB (2/3)*
WD40EFPX-xxC6CNx 4TB (2/4)
WD60EFPX-xxC5ZNx 6TB (3/6)
*Note: Units with more heads may exist, given the output of WD's online warranty checker.
Red Plus (5640RPM, 256MB cache, SATA-600 interface, Advanced Format)
WD80EFPX-xxC4ZNx 8TB (4/8)
OEM / "White Label" (5040RPM, 256MB cache, SATA-600 interface, Advanced Format)
WD20EAAZ-xxBMHBx 2TB (1/2)
WD40EAAZ-xxBMGBx 4TB (2/4)
WD60EAAZ-xxBLVBx 6TB (3/6)
Note: These models report TRIM support for unknown reasons, not unlike certain contemporaneous Purples that report the same RPM.
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