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header-product Internal Hard Drive Western Digital 4TB 3.5" Serial ATA III WD40EFPX
228.99 €

Internal Hard Drive Western Digital 4TB 3.5" Serial ATA III WD40EFPX

Internal Hard Drive Western Digital 4TB WD40EFPX Photo 1
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Internal Hard Drive Western Digital 4TB 3.5" Serial ATA III WD40EFPX

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Internal Hard Drive Western Digital 4TB 3.5" Serial ATA III WD40EFPX

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Short description

The Western Digital Red Plus WD40EFPX is a reliable internal hard drive with a capacity of 4 TB and a speed of 5400 RPM. It features a 256 MB buffer and a 3.5" form factor, making it ideal for NAS systems and data storage. The Serial ATA III interface ensures fast data transfer rates, providing efficient performance for your storage needs.
Available at price 228.99 €: 100 pcs.
Total available for order: 528 pcs.
Warranty: 2 Years
SKU: 5097694
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
14.10.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
19.10.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.67 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
19.10.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 6.36 euros per month
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Product information

Description

WD Red Plus hard drives are designed for small- to medium-sized business NAS environments and SOHO customers who need reliable storage for archiving, sharing and RAID array rebuilding. Built and tested for up to 8-bay NAS systems, these 3.5" HDDs provide compatibility and performance for everyday file storage and network-attached storage use.

Advantages

WD Red Plus drives include NASware 3.0 technology to improve compatibility, integration and reliability in NAS systems. They are optimized for continuous 24/7 operation with an MTBF of up to 1 million hours and use 3D Active Balance Plus to reduce vibration and improve long-term performance. For larger environments, WD Red Pro offers higher-capacity and higher-duty options for systems with 9–24 bays.

Key specifications

  • Form factor: 3.5-inch HDD
  • Optimized for: Up to 8-bay NAS systems
  • Technology: NASware 3.0
  • Balance control: 3D Active Balance Plus
  • Designed for: 24/7 NAS operation (MTBF up to 1,000,000 hours)
  • Use cases: Archiving, sharing, RAID array rebuilding, ZFS and other file systems

How to use

Install the WD Red Plus drive into a compatible 3.5" bay in your NAS enclosure according to the NAS manufacturer's instructions. Use NASware 3.0–compatible firmware and follow recommended RAID configuration and rebuild procedures for your NAS operating system. For best results, pair drives of the same model and capacity and perform regular backups in addition to RAID protection.

Recommendations

Choose WD Red Plus drives for small- to medium-sized NAS deployments up to eight bays. For heavier workloads or larger enclosures (9–24 bays), consider WD Red Pro. Ensure compatibility with your NAS vendor and follow the NAS vendor's installation and RAID recommendations.

Specifications

Storage drive buffer size:
256 MB
Hot-swap:
No
Component for: What this product is used as a part of (component for).
NAS
Type: Characteristics of the device.
HDD
Interface: Interface ports to connect pieces of equipment. USB (Universal Serial Bus) has become the most popular wired interface to connect peripherals. USB 2.0 supports speeds up to 480 Mbit/s (USB 1: 12 Mbit/s). The interface FireWire is also known as the IEEE 1394 standard. Enhanced IDE (EIDE)is sometimes referred to as Fast ATA, Fast IDE or ATA-2.
Serial ATA III
HDD size: The amount of data that the hard drive can store.
3.5
HDD speed: The rotational speed of a hard disk expressed in rotations per minute. The faster the better.
5400
HDD capacity: The maximum storage capacity of the hard disk, usually measured in bytes e.g. GB.
4000 GB
All features

Other features

Compliance certificates: Indicates which regulatory, safety, and environmental standards the product complies with, as verified by recognized authorities or certification bodies.
RoHS

Packaging data

Quantity per pack:
1 pc(s)

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
0.57 kg
Height: The measurement of the product from head to foot or from base to top.
26.1 mm
Depth: The distance from the front to the back of something.
147 mm
Width: The measurement or extent of something from side to side.
101.6 mm

Operational conditions

Non-operating shock: Environmental requirements for optimal protection from impact in non-operating mode
250 G
Operating shock: Environmental requirements for optimal protection from impact in operating mode
70 G
Storage temperature (T-T): The minimum and maximum temperatures at which the product can be safely stored.
-40 - 70
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 65

Power

Power consumption (idle):
3.1 W
Power consumption (standby): The amount of electricity that is consumed when the product is on standby.
0.3 W

Features

Mean time between failures (MTBF): Statistical model used to indicate product/mechanism reliability; expressed in hours and percentage of duty cycle. This number (in hours) does not indicate the mean time before failure for a single unit/mechanism.
1000000 h
Noise level (idle):
23 dB
Workload rate limit:
180 TB/year
Start/stop cycles:
600000
Native Command Queuing (NCQ):
Yes
24/7 operation:
Yes
Advanced Format (AF):
Yes
HDD interface transfer rate:
6 Gbit/s
Storage drive buffer size:
256 MB
Hot-swap:
No
Component for: What this product is used as a part of (component for).
NAS
Type: Characteristics of the device.
HDD
Interface: Interface ports to connect pieces of equipment. USB (Universal Serial Bus) has become the most popular wired interface to connect peripherals. USB 2.0 supports speeds up to 480 Mbit/s (USB 1: 12 Mbit/s). The interface FireWire is also known as the IEEE 1394 standard. Enhanced IDE (EIDE)is sometimes referred to as Fast ATA, Fast IDE or ATA-2.
Serial ATA III
HDD size: The amount of data that the hard drive can store.
3.5
HDD speed: The rotational speed of a hard disk expressed in rotations per minute. The faster the better.
5400
HDD capacity: The maximum storage capacity of the hard disk, usually measured in bytes e.g. GB.
4000 GB

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Product comparison

This comparison examines the Internal Hard Drive Western Digital 4TB 3.5" Serial ATA III WD40EFPX alongside several alternative storage drives from the same manufacturer. The main similarities across these models include the 3.5" form factor, Serial ATA III interface, 256 MB buffer size, and a 5400 RPM rotational speed (except for one higher-speed model). The primary differences lie in their intended application: the Red Plus line is optimized for network attached storage (NAS) systems, whereas the alternative options are tailored for surveillance, standard personal computers, enterprise server environments, or offer a larger capacity.

⚙️ The table below compares the core technical characteristics, such as storage capacity, rotational speed, buffer size, interface type, and intended component use.

ParameterWD40EFPX (Main)HDD WD40EFPXWD60EFPXWD43PURZWD Purple 4TBUltrastar DC HC310Practical significance
Capacity4 TB4 TB6 TB4 TB4 TB4 TB4 TB drives offer standard storage space for most uses, while the 6 TB version provides extra room for larger file libraries.
Component forNASNASNASPC (surveillance)PC (surveillance)Server / workstationRed Plus is engineered for multi-bay NAS, Purple is optimized for continuous video recording, and Ultrastar is designed for demanding servers.
Rotational speed5400 RPM5400 RPM5400 RPM5400 RPM5400 RPM7200 RPMA 5400 RPM speed balances quiet operation and energy efficiency, whereas the 7200 RPM Ultrastar increases performance for server tasks.
Buffer size256 MB256 MB256 MB256 MB256 MB256 MBThe cache buffer size is identical across all models, supporting efficient data handling.
InterfaceSerial ATA IIISerial ATA IIISerial ATA IIISerial ATA IIISerial ATA IIISerial ATA IIIAll drives utilize the standard interface for broad system compatibility.

◎ The table below evaluates how each product aligns with specific use cases and buyer profiles.

Use caseRecommended productWhy
Network attached storage (NAS) for home or small businessInternal Hard Drive Western Digital 4TB 3.5" Serial ATA III WD40EFPXSpecifically built to handle continuous operation and vibration in multi-drive NAS environments.
Storing larger data volumes in a NAS setupInternal Hard Drive Western Digital 6TB 3.5" Serial ATA III WD60EFPXProvides the same reliable Red Plus features with an upgraded 6 TB capacity.
Surveillance systems and continuous video recordingInternal Hard Drive Western Digital 4TB 3.5" Serial ATA III WD43PURZ (or equivalent Purple model)Engineered to handle the workload demands of constant video streams from security cameras.
Servers and workstations with heavy workloadsInternal Hard Drive Western Digital 4TB 3.5" Serial ATA III Ultrastar DC HC310Features a faster 7200 RPM rotational speed suited for demanding enterprise server tasks.

The Internal Hard Drive Western Digital 4TB 3.5" Serial ATA III WD40EFPX is best suited for users setting up or expanding a network-attached storage (NAS) environment where reliability in multi-drive setups is essential. If you require higher storage capacity within a NAS, the WD60EFPX is preferable, whereas surveillance tasks require the Purple series and server workloads call for the Ultrastar alternative.

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Stock data
Warehouse Stock Delivery to the store Store Price
WH94 100 14.10.2026
228.99 €
EU3 20 14.10.2026
230.49 €
EU86 55 14.10.2026
231.99 €
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Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH332 50 14.10.2026
249.49 €
WH109 17 28.10.2026
249.99 €
EU6 15 14.10.2026
278.49 €
228.99 €
Stock: 100
Delivery Date: 14.10.2026
Warehouse: WH94
230.49 €
Stock: 20
Delivery Date: 14.10.2026
Warehouse: EU3
231.99 €
Stock: 55
Delivery Date: 14.10.2026
Warehouse: EU86
237.49 €
Stock: 20
Delivery Date: 14.10.2026
Warehouse: WH155
269.99 €
Stock: 251
Delivery Date: 09.10.2026 Best delivery
Warehouse: WH337
Available only for legal entities
249.49 €
Stock: 50
Delivery Date: 14.10.2026
Warehouse: WH332
249.99 €
Stock: 17
Delivery Date: 28.10.2026
Warehouse: WH109
278.49 €
Stock: 15
Delivery Date: 14.10.2026
Warehouse: EU6

Customer reviews

Customer questions

FAQ

How much does the Internal Hard Drive Western Digital 4TB WD40EFPX cost, and is it available for purchase?

The price is 228.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 528 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.10.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can Internal Hard Drive Western Digital 4TB WD40EFPX be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Internal Hard Drive Western Digital 4TB WD40EFPX online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Western Digital products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Western Digital service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: storage drive buffer size, hot-swap, component for, type, interface, hdd size, hdd speed, hdd capacity, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for Internal Hard Drive Western Digital 4TB WD40EFPX?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
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