# Internal HDD Western Digital Red Plus WD40EFZZ 4 TB 5400 RPM 128 MB 3.5" SATA III

**URL:** https://aio.lv/en/product--western-digital-wd40efzz--11650606
**Data updated:** 2026-01-30 13:37 (EET)
**Category:** Hard Disk Drives (HDD)
**Manufacturer:** Western Digital
**Manufacturer code:** WD40EFZZ
**EAN:** 0718037905754
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 243.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 201.23 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--western-digital-wd40efzz--11650606

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

Western Digital Red Plus WD40EFZZ is a 3.5" internal hard drive designed for NAS and desktop use, offering 4 TB capacity, 5400 RPM spindle speed and 128 MB cache. It uses a Serial ATA III interface for data transfer and provides reliable storage for backups, media libraries and continuous multi-drive environments. Weight about 0.55 kg.

## Long description

Western Digital Red Plus WD40EFZZ is a 3.5" internal HDD with 4 TB capacity, 5400 RPM spindle speed and 128 MB cache, designed for NAS systems and multi-drive environments. The drive uses a Serial ATA III interface and is intended to provide reliable, power-efficient storage for backups, media libraries and continuous operation in small to medium NAS setups.
Advantages
WD Red Plus drives incorporate NASware technology to optimise drive behaviour for NAS workloads, are engineered for 24x7 operation, and are tested for compatibility with a wide range of NAS enclosures. They offer reduced power consumption and lower operating temperatures versus previous models, include enhanced balance control to minimise vibration and noise in multi-drive systems, and provide sufficient bandwidth to handle mixed performance demands while maintaining reliability.
Suitable for
Home and small office NAS for file sharing and backups
SMB RAID-optimized NAS arrays
Media libraries and archival storage
Continuous 24x7 multi-user environments
Key specifications
Capacity: 4 TB
Form factor: 3.5 inch
Spindle speed: 5400 RPM
Interface: Serial ATA III
Cache size: 128 MB
Weight: approx. 0.55 kg
How to use
Install the drive into a compatible NAS enclosure or desktop PC with a 3.5" bay and SATA III connection following the system manufacturer's installation instructions. Configure the drive within your NAS management interface, create or join a RAID array if required, and format the drive according to the file system recommended by your NAS. Ensure proper airflow inside the chassis and secure mounting to reduce vibration.
Usage recommendations
Use WD Red Plus drives in RAID-optimized NAS enclosures and avoid mixing with incompatible desktop drives in multi-bay systems. Maintain up-to-date backups, ensure adequate cooling, and follow vendor compatibility lists for best results.

## Specifications

### Features

| Feature | Value |
|---|---|
| HDD capacity | 4000 GB |
| HDD size | 3.5 |
| HDD speed | 5400 |
| Hot-swap | No |
| Component for | NAS |
| HDD average transfer rate | 180 MB/s |
| Interface | Serial ATA III |
| Type | HDD |
| Storage drive buffer size | 128 MB |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -40 - 70 |
| Operating temperature (T-T) | 0 - 65 |

### Other features

| Feature | Value |
|---|---|
| Certification | BSMI, ICES-003/NMB-003, CE, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB-Scheme, TUV, UL |
| Compliance certificates | RoHS |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.55 kg |
| Height | 26.1 mm |
| Width | 101.6 mm |
| Depth | 147 mm |

### Packaging data

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

## FAQ

### How much does the Western Digital Red Plus WD40EFZZ internal HDD 4 TB cost, and is it available for purchase?

The price is 243.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 255 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 08.07.2026 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Western Digital Red Plus WD40EFZZ internal HDD 4 TB 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, 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.

## Image

https://aio.lv/img/cache/product/11650606/67021830_large.webp