--- 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: "5232.30 DT" currency: TND in_stock: true reviews_count: 13 category: "San Disk" url: https://www.desertcart.tn/products/648106018-wd-black-sn850x-wds400t2xhe-ssd-encrypted-4-tb-internal-m store_origin: TN region: Tunisia --- # 7,300MB/s blazing read speed Massive 4TB storage capacity Advanced heatsink for thermal control WD_BLACK SN850X WDS400T2XHE - SSD - encrypted - 4 TB - internal - M.2 2280 - PCIe 4.0 x4 (NVMe) - TCG Opal Encryption 2. **Brand:** sandisk **Price:** 5232.30 DT **Availability:** ✅ In Stock ## Summary > 🚀 Level up your rig with the WD_BLACK SN850X — speed, space, and style in one sleek package! ## 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?** 5232.30 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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 - • **Massive 4TB Capacity:** Store your entire game library and creative projects without compromise—more space, less hassle. - • **Blazing PCIe 4.0 Speeds:** Experience ultra-fast 7,300MB/s read speeds that obliterate load times and keep you ahead in every game. - • **Future-Ready Tech Suite:** Benefit from Predictive Loading, Overhead Balancing, and Adaptive Thermal Management for seamless, next-level responsiveness. - • **Thermal Mastery with Heatsink:** Stay cool under pressure—optional heatsink ensures peak performance during marathon gaming or heavy workloads. - • **Customizable RGB & Game Mode 2.0:** Personalize your rig’s look and unlock exclusive performance boosts with WD_BLACK Dashboard’s Game Mode 2.0. ## Overview The WD_BLACK SN850X 4TB internal M.2 2280 NVMe SSD delivers blistering PCIe 4.0 x4 speeds up to 7,300MB/s, paired with an optional heatsink for superior thermal management. Designed for gamers and professionals, it offers massive storage, advanced encryption, and customizable RGB lighting via WD_BLACK Dashboard, ensuring your system stays fast, cool, and secure during intense workloads. ## Description From the manufacturer Insane speeds up to 7,300 MB/s(1) (1TB-4TB models) deliver top-tier performance with ridiculously short load times for the elite gaming experience you’ve been waiting for. More Room for More Games Capacities up to 8TB(2) built with Western Digital TLC 3D NAND, means you get to keep more games at the ready — and get into the action even faster. DirectStorage Supported Improve load times and get precious time back with Microsoft DirectStoragetechnology. Do more w/ WD_BLACK Dashboard The downloadable WD_BLACK Dashboard (Windows only) monitors your drive’s health, and lets you customize your RGB lighting. Future-forward Features The WD_BLACK SN850X SSD boasts a powerful suite of features, including Predictive Loading, Overhead Balancing, and Adaptive Thermal Management(4). Compare SSDs WD_BLACK SN850X NVMe SSD WD_BLACK SN770 NVMe SSD WD Blue SN580 NVMe SSD WD Blue SN5000 NVMe SSD (1) Based on read speed. 1 MB/s = 1 million bytes per second. Based on internal testing; performance may vary depending upon host device, usage conditions, drive capacity, and other factors. (2) 1GB = 1 billion bytes and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment.​ (3) PCIe Gen4 storage technology requires a compatible motherboard. WD_BLACK SN850X is backwards-compatible with PCIe Gen3.​ (4) Requires the downloadable WD_BLACK Dashboard (Windows only)​ Western Digital, the Western Digital design, the Western Digital logo, WD_BLACK, and the WD_BLACK logo, WD Blue are registered marks or marks of Western Digital Corporation or its affiliates in the US and/or other countries. NVMe is a mark of NVM Express, Inc. PCIe is a mark of PCI-SIG in the United States and/or other countries. Windows is a mark of Microsoft Corporation. All other marks are the property of their respective owners. Product specifications subject to change without notice. Pictures shown may vary from actual products. 2022 Western Digital Corporation or its affiliates. All rights reserved. Review: Great product! - I’m extremely impressed with the WD Black SN850X 2TB NVMe SSD with Heatsink and would happily give it five stars. This drive delivers outstanding performance and has been a fantastic upgrade for my PC, providing incredibly fast loading times, smooth operation, and plenty of storage space for games, applications, and large files. Installation was straightforward, and the M.2 2280 form factor fits perfectly into compatible systems. The included heatsink is a great addition, helping with heat management during demanding tasks and giving extra confidence when using the drive for extended gaming sessions or heavy workloads. Once installed, the difference in speed compared with a traditional hard drive or older SSD was immediately noticeable. The read and write performance is excellent, making everything feel much more responsive, from launching games to transferring large files. The 2TB capacity is also ideal, offering enough room for a large game library and important software without constantly needing to manage storage space. The build quality feels premium, as expected from WD Black products, and the drive has performed reliably with no issues. Overall, the SN850X is a high-performance SSD that combines speed, capacity, and reliability in one excellent package. I would definitely recommend this SSD to gamers, content creators, or anyone looking to significantly improve their system performance. It is a superb upgrade and easily deserves five stars! 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! ## 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 | 945 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 5 in Internal Solid State Drives | | Box Contents | Internal SSD | | Brand | SanDisk | | Brand Name | SanDisk | | Cache Memory Installed Size | 4 | | Color | Black | | Compatible Devices | Laptop, Motherboards, PS5 | | Compatible Video Game Console Models | Sony PlayStation 4 | | Connectivity technology | PCIe Gen4 (PCIe 4.0 x4) | | Customer Package Type | Standard Packaging | | Customer Reviews | 4.8 out of 5 stars 15,680 Reviews | | Data Transfer Rate | 7300 Megabytes Per Second | | Digital Storage Capacity | 4 TB | | 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 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 | | Special feature | Heatsink | | 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 ### ⭐⭐⭐⭐⭐ Great product! *by M***. on 10 July 2026* I’m extremely impressed with the WD Black SN850X 2TB NVMe SSD with Heatsink and would happily give it five stars. This drive delivers outstanding performance and has been a fantastic upgrade for my PC, providing incredibly fast loading times, smooth operation, and plenty of storage space for games, applications, and large files. Installation was straightforward, and the M.2 2280 form factor fits perfectly into compatible systems. The included heatsink is a great addition, helping with heat management during demanding tasks and giving extra confidence when using the drive for extended gaming sessions or heavy workloads. Once installed, the difference in speed compared with a traditional hard drive or older SSD was immediately noticeable. The read and write performance is excellent, making everything feel much more responsive, from launching games to transferring large files. The 2TB capacity is also ideal, offering enough room for a large game library and important software without constantly needing to manage storage space. The build quality feels premium, as expected from WD Black products, and the drive has performed reliably with no issues. Overall, the SN850X is a high-performance SSD that combines speed, capacity, and reliability in one excellent package. I would definitely recommend this SSD to gamers, content creators, or anyone looking to significantly improve their system performance. It is a superb upgrade and easily deserves five stars! ### ⭐⭐⭐⭐⭐ 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. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/648106018-wd-black-sn850x-wds400t2xhe-ssd-encrypted-4-tb-internal-m](https://www.desertcart.tn/products/648106018-wd-black-sn850x-wds400t2xhe-ssd-encrypted-4-tb-internal-m) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-01*