# Internal 3.5" HDD Western Digital Purple WD40PURX 4 TB 5400 RPM 64 MB SATA III

**URL:** https://aio.lv/en/product--western-digital-wd40purx--11254853
**Data updated:** 2026-03-31 14:38 (EEST)
**Category:** Hard Disk Drives (HDD)
**Manufacturer:** Western Digital
**Manufacturer code:** WD40PURX
**EAN:** 5902887059315
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 303.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 251.23 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--western-digital-wd40purx--11254853

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Western Digital Purple internal hard drive WD40PURX — 3.5" HDD with 4 TB capacity, 5400 RPM rotational speed, 64 MB cache and Serial ATA III interface. Designed for continuous surveillance recording and high-capacity storage, it suits NVRs, DVRs and multi-drive systems where reliability, power efficiency and large sequential write performance are required.

## Long description

Western Digital Purple WD40PURX is a 3.5" internal hard drive with 4 TB capacity, 5400 RPM rotational speed, 64 MB cache and SATA III interface. Engineered for continuous, always-on surveillance recording, it is intended for use in DVRs, NVRs and multi-drive security systems where reliable long-duration operation, power efficiency and sustained sequential write performance are required. The drive supports a workload rate up to 180 TB/year and is optimized to handle streams from multiple high-definition cameras.
Advantages
The WD Purple drive is built to operate in 24/7 high-temperature environments with firmware tuned for sustained video recording. AllFrame 4K™ technology improves ATA streaming to reduce frame loss and improve playback reliability. With a lower rotational speed and optimized power profile, the drive balances energy efficiency with consistent write performance for continuous surveillance storage. It is validated to support multi-drive systems and a high camera count, enabling scalable storage expansion.
Suitable for
 Network Video Recorders (NVRs) and Digital Video Recorders (DVRs) for continuous surveillance
 Multi-bay surveillance systems and storage arrays used in security installations
 High-definition camera setups requiring long-term, sequential video recording
 Environments where power efficiency and consistent write performance are important
Key specifications
 Form factor: 3.5 inch
 Capacity: 4 TB
 Rotational speed: 5400 RPM
 Cache buffer: 64 MB
 Interface: Serial ATA III (SATA 6 Gb/s)
 Workload rating: up to 180 TB per year
 Optimized for continuous 24/7 operation and multi-camera surveillance
How to use
Install the WD Purple WD40PURX in a compatible 3.5" drive bay of your DVR, NVR or storage enclosure and connect via the SATA III interface and appropriate power connector. Configure the recording device following the manufacturer's instructions, initialize and format the drive if required by your system, and verify camera streams and recording schedules. For multi-drive arrays, follow recommended RAID or JBOD configurations specified by your surveillance system to ensure optimal redundancy and performance.
Usage recommendations
Use this drive in systems designed for continuous surveillance; WD recommends 4 TB or greater capacity for many DVR/NVR solutions. For best results, keep firmware and recorder software up to date, maintain adequate cooling in multi-drive enclosures, and consider regular backups or cloning using available tools to protect critical footage.

## Specifications

### Features

| Feature | Value |
|---|---|
| HDD capacity | 4000 GB |
| HDD size | 3.5 |
| HDD speed | 5400 |
| Start/stop cycles | 300000 |
| HDD interface transfer rate | 6 Gbit/s |
| HDD sustained transfer rate | 150 MiB/s |
| Component for | Surveillance system |
| Interface | Serial ATA III |
| Type | HDD |
| Storage drive buffer size | 64 MB |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -40 - 70 |
| Operating temperature (T-T) | 0 - 65 |
| Operating shock | 30 G |
| Non-operating shock | 250 G |

### Other features

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

### Weight & dimensions

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

### Power

| Feature | Value |
|---|---|
| Power consumption (off) | 0.4 W |
| Operating voltage | 5 V |
| Power consumption (idle) | 4.5 W |
| Power consumption (read) | 5.1 W |
| Power consumption (write) | 5.1 W |

### Packaging content

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

### Logistics data

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

## FAQ

### How much does the Western Digital Purple WD40PURX 4 TB 3.5" HDD cost, and is it available for purchase?

The price is 303.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 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 15.07.2026 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 Purple WD40PURX 4 TB 3.5" HDD 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.

### Where can I download the instructions for Western Digital Purple WD40PURX 4 TB 3.5" HDD?

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/11254853/64558081_large.webp