# SSD disk Western Digital 4 TB M.2 PCI Express 4.0 NVMe SN850X

**URL:** https://aio.lv/en/product--western-digital-wds400t2x0e-00bca0--11271038
**Data updated:** 2025-12-09 23:32 (EET)
**Category:** Solid State Drives (SSD)
**Manufacturer:** Western Digital
**Manufacturer code:** WDS400T2X0E-00BCA0
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 805.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 666.11 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--western-digital-wds400t2x0e-00bca0--11271038

## 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 Black SN850X 4 TB SSD offers lightning-fast read speeds of up to 7300 MB/s and write speeds of 6600 MB/s. Designed for PC use, this M.2 PCI Express 4.0 NVMe drive provides ample storage capacity and exceptional performance for gaming and demanding applications. With its compact form factor, it fits seamlessly into your system, ensuring quick load times and smooth multitasking.

## Long description

The WD\_BLACK SN850X NVMe SSD is a high-performance PCIe Gen4 storage drive designed for gaming. Available in capacities from 1TB to 4TB, with optional heatsink on 1TB and 2TB models, it delivers very fast sequential read speeds—up to 7,300 MB/s—and features Game Mode 2.0 (Windows only) to reduce loading times and improve in-game asset readiness for smoother gameplay.
Advantages
Extremely high read speeds reduce load times and enable rapid map and level streaming. Low latency minimizes stutter and lag during gameplay. Multiple capacity options provide space for large modern titles, and the optional heatsink on select models helps sustain peak performance during extended gaming sessions. Game Mode 2.0 offers additional PC optimizations such as load prediction to prepare game assets in advance.
Key specifications
Form factor: M.2 NVMe SSD (PCIe Gen4)
Capacities: 1TB, 2TB, 4TB
Maximum sequential read speed: up to 7,300 MB/s
Optional heatsink available for 1TB and 2TB models
Game Mode 2.0: Windows only
How to use
Install the M.2 drive into a compatible PCIe Gen4 M.2 slot on a desktop or laptop motherboard following the manufacturer’s installation instructions. For systems running Windows, install or update WD\_BLACK software to enable Game Mode 2.0 and other firmware features. If using a heatsink model, ensure there is sufficient clearance in your case and secure the drive according to the motherboard and heatsink guidelines.
Рекомендации
Use this SSD in systems with PCIe Gen4 support to achieve maximum performance. For gaming-focused setups, consider the optional heatsink versions for 1TB and 2TB capacities if your case airflow is limited or you expect extended high-load sessions. Keep firmware and WD software up to date on Windows to benefit from Game Mode 2.0 optimizations.

## Specifications

### Features

| Feature | Value |
|---|---|
| SSD capacity | 4000 GB |
| SSD form factor | M.2 |
| Read speed | 7300 MB/s |
| Write speed | 6600 MB/s |
| Random write (4KB) | 1100000 IOPS |
| Random read (4KB) | 1200000 IOPS |
| Hardware encryption | No |
| PCI Express interface data lanes | x4 |
| TBW rating | 2400 |
| Component for | PC |
| NVMe | Yes |
| Interface | PCI Express 4.0 |
| Windows operating systems supported | Windows 10, Windows 11, Windows 8.1 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.0075 kg |
| Height | 2.38 mm |
| Width | 22 mm |
| Depth | 80 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -40 - 85 |
| Operating temperature (T-T) | 0 - 85 |
| Maximum operating temperature | 85 °C |
| Minimum operating temperature | 0 °C |

## FAQ

### How much does the SSD disk Western Digital 4 TB SN850X cost, and is it available for purchase?

The price is 805.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 56 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, Leasing for legal entities. 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: ssd form factor, ssd capacity, read speed, write 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 SSD disk Western Digital 4 TB SN850X?

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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