# HDD Western Digital Red 4TB 3.5" Serial ATA III WD40EFRX-RFB

**URL:** https://aio.lv/en/product--western-digital-wd40efrx-rfb--1878330
**Data updated:** 2025-12-01 13:44 (EET)
**Category:** Hard Disk Drives (HDD)
**Manufacturer:** Western Digital
**Manufacturer code:** WD40EFRX-RFB
**EAN:** 5711783171409
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 471.99 €
**Prices and availability valid until:** 2026-08-09 23:59
**Price without VAT (21%):** 390.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--western-digital-wd40efrx-rfb--1878330

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

The Western Digital Red 4TB internal hard drive is designed for NAS systems with a capacity of 4 TB and a variable speed. It features a 64 MB buffer and a 3.5" form factor, ensuring reliable performance and efficient data storage. The Serial ATA III interface provides fast data transfer rates, making it ideal for home and small business use. With its optimized design for RAID environments, this HDD offers enhanced reliability and durability for your data storage needs.

## Long description

WD Red hard drives expand NAS storage options with higher capacities and new 2.5-inch models, offering a broader portfolio of drives designed specifically for NAS environments. These drives incorporate NASware 2.0 firmware to improve reliability and protect data during power loss or disruptions, and are tested for wide NAS partner compatibility to ensure dependable operation in compatible NAS enclosures. WD Red is available in capacities up to 4 TB for desktop NAS systems, supporting multi-bay setups for large home or small business storage needs.
Advantages
WD Red provides improved NAS compatibility through NASware 2.0, enhanced data protection in the event of power interruptions, and a range of form factors including new 2.5-inch options. The product line is validated across an extensive list of NAS partners to maximize interoperability with many NAS enclosures. Capacities up to 4 TB enable substantial storage in 1–5 bay home or small business NAS systems.
Key specifications
Optimized for NAS use with NASware 2.0 firmware
Available in 2.5-inch and larger form factors
Capacities available up to 4 TB
Designed for 1–5 bay NAS systems (home and small business)
Compatibility testing across a broad list of NAS partners
How to use
Install WD Red drives into a compatible NAS enclosure following the NAS manufacturer’s installation instructions. Configure the drives within the NAS operating system to set up desired RAID levels or storage pools for redundancy and performance. Use the NAS management tools to format, allocate volumes and enable automated backups, media streaming, and file sharing for devices on your network.
Recommendations
For home media streaming and centralized backups, use WD Red in a 1–5 bay NAS with appropriate RAID or storage pool settings to balance capacity and redundancy. For small business use, integrate WD Red into your existing network infrastructure and maintain regular backups and power protection to maximize data integrity.

## Specifications

### Features

| Feature | Value |
|---|---|
| HDD capacity | 4000 GB |
| HDD size | 3.5 |
| HDD speed | Variable |
| Mean time between failures (MTBF) | 1000000 h |
| Interface | Serial ATA III |
| Type | HDD |
| Storage drive buffer size | 64 MB |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 5 - 95 |
| Storage temperature (T-T) | -40 - 70 |
| Operating temperature (T-T) | 0 - 70 |
| Operating shock | 65 G |
| Non-operating shock | 250 G |

### Other features

| Feature | Value |
|---|---|
| IntelliPower | Yes |
| Data transfer rate | 6 Gbit/s |
| Connectivity technology | Wired |
| Product colour | Black |
| Windows operating systems supported | Y |
| Mac operating systems supported | Y |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.68 kg |
| Height | 26.1 mm |
| Width | 101.6 mm |
| Depth | 147 mm |

### Power

| Feature | Value |
|---|---|
| Power consumption (standby) | 0.4 W |
| Operating voltage | 5 V |
| Power consumption (idle) | 3.3 W |
| Power consumption (read) | 4.5 W |
| Power consumption (write) | 4.5 W |

### Packaging data

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

### Packaging content

| Feature | Value |
|---|---|
| Storage drive adapter included | No |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 84717050 |

## FAQ

### How much does the HDD Western Digital Red 4TB WD40EFRX-RFB cost, and is it available for purchase?

The price is 471.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 27.07.2026 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. All transactions are 100% secure and encrypted.

### 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, product colour, 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 HDD Western Digital Red 4TB WD40EFRX-RFB?

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

https://aio.lv/img/cache/product/1878330/64673303_large.webp