RAID-optimised NAS use
The source lists RAID-optimised NAS systems with up to eight bays.
WD Red Plus 4TB 3.5-inch 5400RPM SATA Internal NAS Hard Drive - WD40EFZZ
Model # WD40EFZZ
-
SKU: WD40EFZZ
$339.00
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Western Digital WD Red Plus | WD40EFZZ
Western Digital WD Red Plus WD40EFZZ 4TB 3.5-inch NAS Hard Drive
The WD Red Plus WD40EFZZ is a 4TB 3.5-inch NAS hard drive with SATA 6Gb/s, CMR recording, 5400RPM, a 128MB cache, transfer rates up to 180MB/s and a three-year limited warranty.
4TBUp to 8 bays180TB/year3-year warranty
CMR recording
Conventional Magnetic Recording is supplied for consistent write behaviour in the described NAS and RAID workloads.
Balanced 5400RPM operation
The source lists 5400RPM, a 128MB cache and transfer rates up to 180MB/s.
Reliability figures supplied
The exact source lists a 180TB/year workload rate and one-million-hour MTBF.
Product overview
The supplied information identifies the WD40EFZZ as a 4TB WD Red Plus hard drive built for multi-bay NAS environments.
It is listed with SATA 6Gb/s, CMR recording, 5400RPM, a 128MB cache, transfer rates up to 180MB/s and compatibility with RAID-optimised NAS systems with up to eight bays.
The source also states a workload rate of 180TB/year, an MTBF of 1,000,000 hours and a three-year limited manufacturer warranty.
Frequently asked questions
What is the WD40EFZZ?
It is a Western Digital WD Red Plus 4TB 3.5-inch NAS hard drive.
What interface and rotational speed are supplied?
The source lists SATA 6Gb/s and 5400RPM.
What recording technology is listed?
The supplied recording technology is CMR.
What cache and transfer rate are listed?
The source lists a 128MB cache and transfer rates up to 180MB/s.
How many NAS bays are supported?
The supplied compatibility statement lists RAID-optimised NAS systems with up to eight bays.
What workload rate is supplied?
The exact specification lists 180TB/year.
What MTBF figure is supplied?
The source lists 1,000,000 hours MTBF.
What warranty applies?
The source states a three-year limited Western Digital manufacturer warranty. DeviceDeal is an authorised reseller.
(WD40EFZZ)
Features and highlights
Western Digital WD Red Plus WD40EFZZ 4TB 3.5-inch NAS Hard Drive key details from the supplied product information.
4TB NAS capacity
The exact-SKU information lists 4TB.
Up to eight NAS bays
The source lists RAID-optimised NAS systems with up to eight bays.
CMR and SATA 6Gb/s
Conventional Magnetic Recording and SATA 6Gb/s are supplied.
5400RPM and 128MB cache
The exact specifications list 5400RPM and a 128MB cache.
180MB/s, 180TB/year and 1M-hour MTBF
These performance and reliability figures are supplied.
Three-year limited warranty
A three-year limited Western Digital manufacturer warranty is listed.
Technical specifications
WD40EFZZ
General information
| Brand | Western Digital |
| Model number | WD40EFZZ |
| DeviceDeal SKU | WD40EFZZ |
| Product line | WD Red Plus |
| Product type | NAS hard drive |
| Capacity | 4TB |
| Form factor | 3.5-inch |
Performance and interface
| Interface | SATA 6Gb/s |
| Recording technology | CMR |
| Rotational speed | 5400RPM |
| Cache size | 128MB |
| Transfer rate | Up to 180MB/s |
NAS environment and reliability
| Compatibility | RAID-optimised NAS systems with up to 8 bays |
| Workload rate | 180TB/year |
| MTBF | 1,000,000 hours |
Physical and environmental
| Dimensions (L × W × H) | 146.99mm × 101.6mm × 26.11mm |
| Weight | 0.55kg |
| Operating temperature | 0°C to 65°C |
| Non-operating temperature | -40°C to 70°C |
Certifications
| Certifications | BSMI, ICES-003/NMB-003, CE, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB-Scheme, TUV, UL |
Warranty
| Manufacturer warranty | 3-year limited Western Digital manufacturer warranty |
| SKU | WD40EFZZ |
| Barcode # | 718037905754 |
| Brand | Western Digital |
| Shipping Weight | 0.5000kg |
| Shipping Width | 0.003m |
| Shipping Height | 0.015m |
| Shipping Length | 0.010m |
3-year limited warranty
Manufacturer warranty
This product is covered by a three-year limited Western Digital manufacturer warranty.
DeviceDeal is an authorised reseller. Keep your DeviceDeal tax invoice as proof of purchase.
Warranty coverage and claims remain subject to the manufacturers terms, eligibility requirements and product assessment.
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