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

**URL:** https://aio.lv/en/product--western-digital-wd40efpx--5097694
**Data updated:** 2025-12-08 09:16 (EET)
**Category:** Hard Disk Drives (HDD)
**Manufacturer:** Western Digital
**Manufacturer code:** WD40EFPX
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 188.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 155.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--western-digital-wd40efpx--5097694

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Wednesday | free |
| Pickup points | 22.06.2026 | 1.99 EUR |
| Courier delivery to door | 22.06.2026 | 4.99 EUR |

## Summary 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.

## Long 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

### Features

| Feature | Value |
|---|---|
| HDD capacity | 4000 GB |
| HDD size | 3.5 |
| HDD speed | 5400 |
| Mean time between failures (MTBF) | 1000000 h |
| Start/stop cycles | 600000 |
| Hot-swap | No |
| HDD interface transfer rate | 6 Gbit/s |
| Component for | NAS |
| Workload rate limit | 180 TB/year |
| Interface | Serial ATA III |
| Type | HDD |
| Noise level (idle) | 23 dB |
| Native Command Queuing (NCQ) | Yes |
| Storage drive buffer size | 256 MB |
| Advanced Format (AF) | Yes |
| 24/7 operation | Yes |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -40 - 70 |
| Operating temperature (T-T) | 0 - 65 |
| Operating shock | 70 G |
| Non-operating shock | 250 G |

### Other features

| Feature | Value |
|---|---|
| Compliance certificates | RoHS |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.57 kg |
| Height | 26.1 mm |
| Width | 101.6 mm |
| Depth | 147 mm |

### Power

| Feature | Value |
|---|---|
| Power consumption (standby) | 0.3 W |
| Power consumption (idle) | 3.1 W |

### Packaging data

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

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

The price is 188.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 531 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 Wednesday 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: Cash payment, 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. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: hdd capacity, hdd size, hdd speed, mean time between failures (mtbf), weight, 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.

## Image

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