WD 4TB Red Plus 5400rpm HDD 128MB Cache Internal NAS Hard Drive (WD40EFZZ)
Capacity: 4 TB
Product Technical Specification
| Features | |
| HDD capacity | 4 TB |
| HDD speed | 5400 RPM |
| Storage drive buffer size | 128 MB |
| HDD size | 3.5" |
| Interface | Serial ATA III |
| Type | HDD |
| Component for | NAS |
| Hot-swap | No |
| HDD average transfer rate | 180 MB/s |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 65 °C |
| Storage temperature (T-T) | -40 - 70 °C |
| Weight & dimensions | |
| Width | 101.6 mm |
| Height | 26.1 mm |
| Depth | 147 mm |
| Weight | 550 g |
| Packaging data | |
| Quantity per pack | 1 pc(s) |
| Other features | |
| Compliance certificates | RoHS |
| Certification | BSMI, ICES-003/NMB-003, CE, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB-Scheme, TUV, UL |
Delivery Options
Economy Delivery (UK)
Fast & Tracked by Courier (UK)
Powerful internal HDDs designed for performance, reliability and power efficiency in small to medium NAS environments.
WD Red Plus internal HDDs are designed to handle workloads for power users and small to medium business NAS environments. WD Red Plus drives deliver the speed and capacity required to store, protect and share growing amounts of data in mid-sized RAID-optimized NAS systems with increased power efficiency.
Tuned for NAS with NASware™
Western Digital’s exclusive NASware™ technology fine tunes drive parameters to match NAS system workloads which helps increase performance and reliability.
Designed for Continuous Operation
Since your NAS system is always on, a reliable drive is essential. WD Red Plus hard drives are designed for systems that operate 24x7, giving users the confidence of knowing they can reliably access their data.
Tested for Dependable Compatibility
Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures.
Optimized for Lower TCO
WD Red Plus drives are engineered to use less power (versus previous models) and run cooler, which reduces operating costs and helps reduce heat in thermally challenged NAS boxes.
Powered for Strong Performance
Despite using less power, the drives have plenty of bandwidth to handle the mixed performance demands of multi-drive NAS systems.
Balanced for Increased Reliability
Hard drives that are not properly balanced may cause excessive vibration and noise in multi-drive systems, which could reduce hard drive life span and degrade the performance over time. Our enhanced dual-plane balance control technology significantly improves balance and increases overall drive performance and reliability.
Backed by World-Class Support and Warranty
As an industry-leading hard drive manufacturer, Western Digital stands behind their NAS storage solutions with the assurance of a 3-year limited warranty and world-class support services for hassle free data storage.
Desktop drives vs. WD Red® Plus
It is important to choose a drive purpose-built for RAID-optimized NAS systems to ensure optimum performance and preserve your valuable data. Take the following into consideration when choosing a hard drive for your NAS:
- Compatibility: Unlike desktop drives, WD Red Plus hard drives are specifically designed and tested for NAS and include NASware™ technology which fine tunes drive parameters to match NAS system workloads for optimum performance.
- Reliability: Desktop drives aren’t typically designed for the demands of an always-on NAS environment. WD Red Plus hard drives are designed to perform under tough conditions encountered in high-intensity 24x7 multi-user NAS environments.
- RAID Ready: WD Red hard drives are engineered with RAID error recovery control to help reduce failures within multi-bay NAS systems, unlike most desktop drives that are configured for generic use.
- Noise and Vibration Protection: Designed to operate solo, desktop drives typically offer little or no protection from the noise and vibration present in a multi-drive system. WD Red hard drives include Rotation Vibration (RV) sensors that anticipate and proactively counteract disturbances caused by increased vibration often found in multi-bay NAS systems.
Specification:
- Capacity: 4TB
- Interface: SATA 6 Gb/s
- Transfer Rate: up to 180MB/s
- Rotational Speed: 5400 RPM (nominal)
- Buffer Size: 128 MB
- Buffer To Host (Serial ATA): 6 Gb/s (Max)
- Form Factor: 3.5-Inch
- Warranty: 3-Year Limited Warranty
- Operating Temperature: 0°C to 65°C
- Non-Operating Temperature: -40°C to 70°C
- Certifications: BSMI, ICES-003/NMB-003, CE, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB-Scheme, TUV, UL
- Packaging: OEM
| Features | |
| HDD capacity | 4 TB |
| HDD speed | 5400 RPM |
| Storage drive buffer size | 128 MB |
| HDD size | 3.5" |
| Interface | Serial ATA III |
| Type | HDD |
| Component for | NAS |
| Hot-swap | No |
| HDD average transfer rate | 180 MB/s |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 65 °C |
| Storage temperature (T-T) | -40 - 70 °C |
| Weight & dimensions | |
| Width | 101.6 mm |
| Height | 26.1 mm |
| Depth | 147 mm |
| Weight | 550 g |
| Packaging data | |
| Quantity per pack | 1 pc(s) |
| Other features | |
| Compliance certificates | RoHS |
| Certification | BSMI, ICES-003/NMB-003, CE, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB-Scheme, TUV, UL |
Buykingston order despatch times:
We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.
These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).
We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.
Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.
Despatch times do not apply to UK public holidays.
Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.
Our warehouse reserves the right to upgrade the delivery method you select on your order.
Our available delivery options*
Contact us for a shipping quote.
*All delivery times are estimated unless stated.
Product Returns Note
Buykingston offers a simple, hassle-free returns policy. If for whatever
reason you are not happy with the item purchased, you can return it to us
within 14 days of receipt for a refund. This applies to items purchased
direct through Buykingston only.
Our 14 Day Returns Money Back Guarantee:
For items returned in resaleable condition, with all original packaging. If
an item has been opened for inspection but shows signs of use beyond that, a
deduction may apply to reflect the reduced value — see our full
Terms & Conditions
(Section 12) for details.
Some items are excluded from our money-back guarantee unless they have developed a fault. These include:
- Headphones
- Earphones
- Custom made and designed products, such as flash memory products with
custom logos on them, e.g. USB flash drives and memory cards with your own
logo
Returns FAQs
What is your returns criteria?
14 days from date of receipt, or expected date of receipt on non-tracked
items.
How do I go about returning my order?
Please contact us
via our contact page with your order number. We will provide you with an RMA
number and return instructions, including your return deadline and whether a
freepost label applies to your order.
Do I need to contact you before returning my order?
Yes, to obtain an RMA number before sending anything back.
Does my item have to include its original packaging?
Yes, to qualify for our 14 day money-back guarantee. For faulty items, we
understand you may no longer have the original packaging.
Who pays for return postage?
If your item is faulty, damaged, or not as described, we cover reasonable
return postage, or provide a freepost label where available. If you are
returning an item for another reason (including simply changing your mind),
you are responsible for return postage unless we have expressly confirmed a
freepost label in your RMA email — we recommend using a tracked and
insured service for items of significant value.
Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer
directly for assistance.
Please ensure you have read and comply in full with Sections 11–13 of our Terms & Conditions.