![WD Red Plus 4TB Internal NAS HDD [WD40EFZZ]](https://eadn-wc02-14353776.nxedge.io/cdn/media/mf_webp/jpg/media/catalog/product/cache/207e23213cf636ccdef205098cf3c8a3/w/d/wd40efzz_media-00.webp "WD Red Plus 4TB Internal NAS HDD [WD40EFZZ]")
WD Red Plus 4TB Internal NAS HDD [WD40EFZZ]
Delivery
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WD Red Plus 4TB Internal NAS HDD [WD40EFZZ]
The WD Red Plus 4TB Internal NAS HDD is engineered specifically for RAID-optimized NAS systems with up to 8 bays. Operating at 5400 RPM with CMR technology and a 128MB cache, this 3.5-inch SATA drive delivers consistent transfer rates up to 180MB/s. Rated for 180TB of workload per year and an impressive 1 million hours MTBF, it is built for the 24/7 demands of home offices, small to medium businesses, and consumer or commercial NAS environments. With an operating temperature range of 0°C to 65°C and survival from -40°C to 70°C when powered off, the WD Red Plus offers reliable, high-capacity storage backed by a 3-year limited warranty.
Key Features
- 4TB NAS Hard Drive Storage
- 3.5" Form Factor
- SATA Interface
- Up to 180MB/s Transfer Speed
- 5400 RPM Disk Speed
- CMR Recording Technology
- 128MB Cache
- 3 Year Limited Warranty
The WD Red Plus 4TB is ideal for home office power users, creative professionals, small business owners, and IT administrators building or expanding RAID-optimized NAS systems with up to 8 bays. Its CMR recording technology ensures predictable, high-performance operation in RAID arrays, making it perfect for file sharing, media streaming (Plex servers), automated backups, on-premise collaboration, and surveillance recording. Rated for 180TB/year workload, this drive handles the continuous read/write cycles of multi-user NAS environments. Power users managing growing media libraries, small teams sharing project files, or businesses implementing redundant backup solutions will benefit from its reliability, capacity, and 1 million hour MTBF for peace of mind.
Capacity
4 TB
Form Factor
3.5-Inch
Interface
SATA
Transfer Rate
Up to 180 MB/s
Disk Speed
5400 RPM
Recording Technology
CMR
Cache Size
128 MB
Endurance (Workload Rate)
180 TB/year
MTBF
1 million hours
Operating Temperature
0°C to 65°C
Non-Operating Temperature
-40°C to 70°C
Dimensions (L x W x H)
147 x 101.6 x 26.1 mm
Weight
1 kg
Warranty
3-Year Limited Warranty
Compatibility
RAID-optimized NAS systems with up to 8 bays
Ideal For
Home offices, power users, small to medium businesses, consumer/commercial NAS systems
WD Red Plus 4TB Internal NAS HDD [WD40EFZZ]
The WD Red Plus 4TB Internal NAS HDD is engineered specifically for RAID-optimized NAS systems with up to 8 bays. Operating at 5400 RPM with CMR technology and a 128MB cache, this 3.5-inch SATA drive delivers consistent transfer rates up to 180MB/s. Rated for 180TB of workload per year and an impressive 1 million hours MTBF, it is built for the 24/7 demands of home offices, small to medium businesses, and consumer or commercial NAS environments. With an operating temperature range of 0°C to 65°C and survival from -40°C to 70°C when powered off, the WD Red Plus offers reliable, high-capacity storage backed by a 3-year limited warranty.
Key Features
- 4TB NAS Hard Drive Storage
- 3.5" Form Factor
- SATA Interface
- Up to 180MB/s Transfer Speed
- 5400 RPM Disk Speed
- CMR Recording Technology
- 128MB Cache
- 3 Year Limited Warranty
The WD Red Plus 4TB is ideal for home office power users, creative professionals, small business owners, and IT administrators building or expanding RAID-optimized NAS systems with up to 8 bays. Its CMR recording technology ensures predictable, high-performance operation in RAID arrays, making it perfect for file sharing, media streaming (Plex servers), automated backups, on-premise collaboration, and surveillance recording. Rated for 180TB/year workload, this drive handles the continuous read/write cycles of multi-user NAS environments. Power users managing growing media libraries, small teams sharing project files, or businesses implementing redundant backup solutions will benefit from its reliability, capacity, and 1 million hour MTBF for peace of mind.
Capacity
4 TB
Form Factor
3.5-Inch
Interface
SATA
Transfer Rate
Up to 180 MB/s
Disk Speed
5400 RPM
Recording Technology
CMR
Cache Size
128 MB
Endurance (Workload Rate)
180 TB/year
MTBF
1 million hours
Operating Temperature
0°C to 65°C
Non-Operating Temperature
-40°C to 70°C
Dimensions (L x W x H)
147 x 101.6 x 26.1 mm
Weight
1 kg
Warranty
3-Year Limited Warranty
Compatibility
RAID-optimized NAS systems with up to 8 bays
Ideal For
Home offices, power users, small to medium businesses, consumer/commercial NAS systems