---
product_id: 648106018
title: "WD_BLACK SN850X WDS400T2XHE - SSD - encrypted - 4 TB - internal - M.2 2280 - PCIe 4.0 x4 (NVMe) - TCG Opal Encryption 2."
brand: "sandisk"
price: "KD 299.43"
currency: KWD
in_stock: true
reviews_count: 11
category: "San Disk"
url: https://www.desertcart.com.kw/products/648106018-wd-black-sn850x-wds400t2xhe-ssd-encrypted-4-tb-internal-m
store_origin: KW
region: Kuwait
---

# 7300MB/s blazing read speed Optional heatsink for peak cooling TCG Opal Encryption 2 security WD_BLACK SN850X WDS400T2XHE - SSD - encrypted - 4 TB - internal - M.2 2280 - PCIe 4.0 x4 (NVMe) - TCG Opal Encryption 2.

**Brand:** sandisk
**Price:** KD 299.43
**Availability:** ✅ In Stock

## Summary

> 🚀 Own the speed. Secure your edge. Dominate the game.

## Quick Answers

- **What is this?** WD_BLACK SN850X WDS400T2XHE - SSD - encrypted - 4 TB - internal - M.2 2280 - PCIe 4.0 x4 (NVMe) - TCG Opal Encryption 2. by sandisk
- **How much does it cost?** KD 299.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/648106018-wd-black-sn850x-wds400t2xhe-ssd-encrypted-4-tb-internal-m)

## Best For

- sandisk enthusiasts

## Why This Product

- Trusted sandisk brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Thermal Mastery:** Optional heatsink design ensures sustained peak performance during marathon gaming or heavy workloads.
- • **Rock-Solid Security:** TCG Opal Encryption 2 keeps your data locked tight, perfect for professionals demanding privacy and peace of mind.
- • **Massive 4TB Capacity:** Store your entire game library, creative projects, and critical files with room to spare—no compromises.
- • **Blazing PCIe 4.0 Speeds:** Experience ultra-fast 7,300MB/s read and 6,600MB/s write speeds that obliterate load times and boost productivity.
- • **Smart Performance Dashboard:** WD_BLACK Dashboard with Game Mode 2.0 optimizes your drive’s health, lighting, and gaming responsiveness effortlessly.

## Overview

The WD_BLACK SN850X 4TB M.2 2280 PCIe 4.0 NVMe SSD delivers elite-level performance with up to 7,300MB/s read speeds and advanced TCG Opal Encryption 2 for data security. Its optional heatsink keeps temperatures low during intense use, while the WD_BLACK Dashboard software offers real-time health monitoring and Game Mode 2.0 for optimized gaming. Designed for gamers and professionals alike, this SSD combines massive storage, cutting-edge speed, and robust security in a sleek, future-proof package.

## Description

Achieve lightning-fast speeds up to 7,300 MB/s read and 6,600 MB/s with this high-performance NVMe SSD. Includes an optional heatsink for sustained peak performance.

Review: Blazing Fast and Runs Cool — Perfect for Gaming - I upgraded to the WD Black SN850X 1TB with Heatsink for my gaming pc after my ssd died, and it has exceeded every expectation. Installation was a breeze — it slotted perfectly into my motherboard's M.2 slot, and the built-in heatsink saved me the hassle of having to reuse the one i already had and made installing it easier The speed is incredible. Boot times are almost instant, and games load fast AF. I’ve also noticed smoother performance although thats probably due to having a fresh windows install. The heatsink does a fantastic job — even under heavy load, temps stay well within safe limits. It’s also PlayStation 5 compatible, so this would be a great option if you're looking to expand your PS5 storage with something fast and reliable. although i dont own one so cant comment on anything about that If you want top-tier performance with excellent thermal control, this drive is worth every penny. Highly recommended!
Review: Everyday use I personally haven’t noticed a huge difference - I installed the WD Black SN850X 2TB NVMe as an upgrade expecting a noticeable jump in speed. On paper it’s extremely fast, with advertised read speeds up to around 7,300 MB/s on PCIe 4.0 x4, which puts it right at the top end of Gen4 SSDs. Installation was straightforward and the drive works perfectly. The system recognised it instantly and it performs exactly as expected. That said, incompared to other NVMe drives running in PCIe 4x4 mode. Boot times, program launches, and general desktop use all feel very similar to other decent NVMe SSDs. Where this drive really shines is in benchmarks and large file transfers, where the higher sequential speeds can actually be used. For normal daily use and gaming though, the difference isn’t as dramatic as the specs might suggest. Build quality is excellent, reliability seems solid so far, and it’s clearly a very capable high-end drive. Overall: a very fast SSD and a great upgrade if you want top-tier Gen4 performance — just don’t expect everyday tasks to suddenly feel dramatically faster.

## Features

- Gain the ultimate gaming edge. Insane speeds up to 7,300MB/s (1TB - 4TB models) deliver top-tier performance with ridiculously short load times — for the elite gaming experience you’ve been waiting for.
- Heatsink for the win. All capacities have an optional heatsink version that's not only eye-catching, but also helps your rig maintain peak performance through your most intense gaming sessions.
- More room for more games. Capacities up to 8TB built with Western Digital TLC 3D NAND, means you get to keep more games at the ready — and get into the action even faster.
- Do more with WD_BLACK Dashboard. The downloadable WD_BLACK Dashboard (Windows only) monitors your drive’s health, lets you customize your RGB lighting, and, exclusively on the SN850X SSD, enables Game Mode 2.0 to transform your gaming experience.
- Future-forward features. The WD_BLACK SN850X SSD boasts a powerful suite of features, including Predictive Loading, Overhead Balancing, and Adaptive Thermal Management (ATM).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9WTKV1B |
| Best Sellers Rank | 531 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 3 in Internal Solid State Drives |
| Box Contents | Internal SSD |
| Brand Name | SanDisk |
| Cache Memory Installed Size | 4 |
| Color | Black |
| Compatible Devices | Laptop, Motherboards, PS5 |
| Compatible Video Game Console Models | Sony PlayStation 4 |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.8 4.8 out of 5 stars (15,414) |
| Data Transfer Rate | 7300 Megabytes Per Second |
| Digital Storage Capacity | 4 TB |
| Enclosure Material | 3D NAND |
| Form Factor | M.2 2280 |
| Global Trade Identification Number | 00718037901480 |
| Hard Disk Description | Solid State Drive |
| Hard Disk Form Factor | 2.5 Inches |
| Hard Disk Interface | PCIE x 4 |
| Hard-Drive Size | 4 TB |
| Hardware Connectivity | PCIE x 16 |
| Hardware Platform | PC |
| Installation Type | Internal Hard Drive |
| Item Weight | 8.6 Grams |
| Manufacturer | Sandisk Technologies, Inc. |
| Manufacturer Part Number | WDS400T2XHE |
| Media Speed | 6600 MB/s |
| Model Name | WD_BLACK SN850X |
| Model Number | WDS400T2XHE |
| Network Connectivity Technology | PCIe Gen4 (PCIe 4.0 x4) |
| Number of Items | 1 |
| Product Features | Heatsink |
| Product Warranty | 5 Years Limited |
| Read Speed | 7300 Megabytes Per Second |
| Specific Uses For Product | Gaming |
| UPC | 718037901480 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** SanDisk
- **Colour:** Black
- **Compatible devices:** Laptop, Motherboards, PS5
- **Connectivity technology:** PCIe Gen4 (PCIe 4.0 x4)
- **Digital storage capacity:** 4 TB
- **Hard disk description:** Solid State Drive
- **Hard disk form factor:** 2.5 Inches
- **Hard disk interface:** PCIE x 4
- **Installation type:** Internal Hard Drive
- **Special feature:** Heatsink

## Images

![WD_BLACK SN850X WDS400T2XHE - SSD - encrypted - 4 TB - internal - M.2 2280 - PCIe 4.0 x4 (NVMe) - TCG Opal Encryption 2. - Image 1](https://m.media-amazon.com/images/I/618RFfiA8dL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Blazing Fast and Runs Cool — Perfect for Gaming
*by R***Y on 10 May 2025*

I upgraded to the WD Black SN850X 1TB with Heatsink for my gaming pc after my ssd died, and it has exceeded every expectation. Installation was a breeze — it slotted perfectly into my motherboard's M.2 slot, and the built-in heatsink saved me the hassle of having to reuse the one i already had and made installing it easier The speed is incredible. Boot times are almost instant, and games load fast AF. I’ve also noticed smoother performance although thats probably due to having a fresh windows install. The heatsink does a fantastic job — even under heavy load, temps stay well within safe limits. It’s also PlayStation 5 compatible, so this would be a great option if you're looking to expand your PS5 storage with something fast and reliable. although i dont own one so cant comment on anything about that If you want top-tier performance with excellent thermal control, this drive is worth every penny. Highly recommended!

### ⭐⭐⭐⭐⭐ Everyday use I personally haven’t noticed a huge difference
*by C***N on 29 March 2026*

I installed the WD Black SN850X 2TB NVMe as an upgrade expecting a noticeable jump in speed. On paper it’s extremely fast, with advertised read speeds up to around 7,300 MB/s on PCIe 4.0 x4, which puts it right at the top end of Gen4 SSDs. Installation was straightforward and the drive works perfectly. The system recognised it instantly and it performs exactly as expected. That said, incompared to other NVMe drives running in PCIe 4x4 mode. Boot times, program launches, and general desktop use all feel very similar to other decent NVMe SSDs. Where this drive really shines is in benchmarks and large file transfers, where the higher sequential speeds can actually be used. For normal daily use and gaming though, the difference isn’t as dramatic as the specs might suggest. Build quality is excellent, reliability seems solid so far, and it’s clearly a very capable high-end drive. Overall: a very fast SSD and a great upgrade if you want top-tier Gen4 performance — just don’t expect everyday tasks to suddenly feel dramatically faster.

### ⭐⭐⭐⭐⭐ Bought for ps5
*by A***N on 31 January 2026*

Bought for PS5 memory expansion, it's brilliant, easy to install and runs perfectly after being in for a couple months now, super fast compared to my old external device

## Frequently Bought Together

- WD_BLACK 4TB SN850X NVMe Internal Gaming Solid State Drive with Heatsink - Works with PlayStation 5, Gen4 PCIe, M.2 2280, Up to 7,300 MB/s - WDS400T2XHE
- PCIe NVMe M.2 SSD Mounting Screws Kit for Asus Gigabyte ASRock Msi Motherboards, 30pcs
- ARCTIC MX-4 (4 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very high Thermal Conductivity, Long Durability, Safe Application, Non-Conductive

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**Shop now:** [https://www.desertcart.com.kw/products/648106018-wd-black-sn850x-wds400t2xhe-ssd-encrypted-4-tb-internal-m](https://www.desertcart.com.kw/products/648106018-wd-black-sn850x-wds400t2xhe-ssd-encrypted-4-tb-internal-m)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-05-17*