| Key Features | ||
| Capacity | 1TB | |
| Form Factor | M.2 2280 | |
| Flash Type | 3D TLC NAND | |
| Interface | PCIe 4.0 x4, NVMe | |
| Sequential R/W | Up to 7300MB/s Read / 6300MB/s Write | |
| Others | Random Read: Up to 800K IOPS; Random Write: Up to 1100K IOPS; DirectStorage Support; WD_BLACK Dashboard; Game Mode 2.0 | |
| TBW | 600TBW | |
| Physical Specification | ||
| Dimension | 80 x 22 x 2.38mm | |
| Weight | 7.5g | |
| Color | Black | |
| Temperature | ||
| Operating Temperature | 0°C to 85°C | |
| Storage Temperature | -40°C to 85°C | |
| Warranty | ||
| Manufacturing Warranty | 5 Years Limited Warranty | |
The Western Digital BLACK SN850X GEN 4 M.2 NVMe 1TB SSD is a high-performance PCIe Gen4 NVMe SSD designed for gamers, content creators, professionals, and demanding PC users who want faster loading, file transfers, application launches, and overall system responsiveness. With sequential read speeds of up to 7300MB/s and write speeds of up to 6300MB/s, this 1TB M.2 SSD delivers the performance needed for modern gaming PCs and high-performance workstations.
Available from Potaka IT, this WD_BLACK SSD is an excellent upgrade for a compatible desktop or gaming PC. Its compact M.2 2280 design works with motherboards featuring an M.2 M-key slot and PCIe 4.0 x4 support. If you are looking for a fast SSD for gaming, productivity, software development, content creation, or everyday high-performance computing, the SN850X is built for demanding workloads.
The WD_BLACK SN850X combines high sequential performance with strong random I/O capability, making it more than just a fast storage drive. Its 800K random read IOPS and 1100K random write IOPS help the SSD handle frequent small-file operations, application workloads, game assets, and multitasking efficiently.
With sequential read speeds of up to 7300MB/s and sequential write speeds of up to 6300MB/s, the SN850X can significantly reduce waiting time when loading large applications, transferring files, installing games, and working with large media projects. These speeds make it a strong choice for users upgrading from SATA SSDs or traditional hard drives.
The PCIe 4.0 x4 interface provides the bandwidth required to take advantage of the SN850X's high-speed NVMe architecture. For the best results, install the drive in a compatible PCIe Gen4 M.2 slot on your motherboard. A PCIe Gen3 system can support compatible Gen4 SSDs in many configurations, but performance may be limited by the older interface.
The 1TB capacity provides practical storage space for Windows, productivity software, creative applications, frequently played games, project files, and personal data. It is a useful balance for users who need substantially more space than a 500GB SSD without immediately moving to a larger 2TB drive.
Rated for up to 800K random read IOPS and 1100K random write IOPS, the SN850X is designed to respond quickly to demanding workloads involving many small data operations. This can benefit gaming, application loading, multitasking, development environments, and content-creation workflows.
For gaming PCs, storage performance affects more than simply copying files. A fast NVMe SSD can help reduce game loading times and improve the responsiveness of large game installations. The SN850X also supports Microsoft DirectStorage technology, which is designed to improve game loading efficiency on compatible systems.
If you are building a performance-focused gaming system, pairing this SSD with a capable graphics card and modern processor can create a balanced high-performance platform.
The SN850X is not limited to gaming. Its high sequential throughput and strong random performance make it suitable for photo and video editing, software development, large project files, application-heavy workloads, virtual machines, and professional productivity. Users who regularly move large files can benefit from its PCIe Gen4 bandwidth and NVMe architecture.
Developers can benefit from faster project indexing, application launches, build operations, virtual machine storage, and large code repositories. When combined with a capable processor and sufficient system memory, a fast NVMe SSD can help create a more responsive development workstation.
Compared with a traditional SATA SSD, the SN850X uses PCIe 4.0 x4 NVMe connectivity and offers substantially higher sequential bandwidth. This makes it particularly suitable for users who frequently transfer large files, work with demanding applications, install large games, or want a faster primary storage drive.
However, the actual performance you experience depends on the motherboard's M.2 slot, PCIe generation, CPU platform, cooling, workload, operating system, and other system components. For maximum performance, use a compatible PCIe Gen4 M.2 slot.
| Specification | Details |
|---|---|
| Brand | Western Digital |
| Series | WD_BLACK SN850X |
| Capacity | 1TB |
| Interface | PCIe 4.0 x4 |
| Protocol | NVMe |
| Form Factor | M.2 2280 |
| Sequential Read Speed | Up to 7300MB/s |
| Sequential Write Speed | Up to 6300MB/s |
| Random Read IOPS | Up to 800K IOPS |
| Random Write IOPS | Up to 1100K IOPS |
| Endurance | 600TBW |
| Color | Black |
| Dimension | 80 x 23.4 x 8.8mm |
| Weight | 24g |
| Operating System | Windows 10 or later |
| Compatibility | Computer with M.2 M-key port supporting M.2 2280 |
| Warranty | 5 Years Limited Warranty |
The official specifications list the 1TB WD_BLACK SN850X at up to 7300MB/s sequential read, 6300MB/s sequential write, 800K random read IOPS, 1100K random write IOPS, and 600TBW endurance. The heatsink version has different physical dimensions and weight from the standard model, so buyers should verify the exact SKU before installation.
Before buying, check whether your PC or laptop has a compatible M.2 2280 M-key slot and supports PCIe NVMe storage. To utilize the drive's full Gen4 performance, a compatible PCIe 4.0 x4 platform is recommended. Also consider motherboard M.2 heatsink availability and airflow if the SSD will be subjected to sustained workloads.
For a new performance-oriented PC build, the SN850X works particularly well alongside a modern desktop RAM kit, capable processor, and dedicated GPU. For users building around PCIe Gen4 hardware, it provides a strong storage foundation without requiring the newer PCIe Gen5 platform.
If you are searching for the WD_BLACK SN850X 1TB SSD price in Bangladesh, this model is a strong choice when your priority is high-speed PCIe Gen4 storage. Its 1TB capacity, 7300MB/s read speed, 6300MB/s write speed, high IOPS performance, and M.2 2280 form factor make it suitable for gaming PCs, workstations, development systems, and high-performance desktops.
Choose Potaka IT when comparing PC hardware and storage solutions for your next upgrade. Make sure your motherboard supports the required M.2 form factor and PCIe interface before purchasing.
The WD_BLACK SN850X 1TB offers sequential read speeds of up to 7300MB/s.
The 1TB model offers sequential write speeds of up to 6300MB/s.
Yes. The WD_BLACK SN850X 1TB uses a PCIe 4.0 x4 interface and is designed for compatible M.2 NVMe systems.
Yes. Its high sequential performance, strong random I/O capability, NVMe architecture, and DirectStorage support make it well suited for modern gaming PCs.
Yes. The 1TB SN850X uses the M.2 2280 form factor and requires a compatible M.2 M-key slot.
The official 1TB model is rated for up to 600TBW of endurance.
The official specification lists a 5-year limited warranty for the 1TB WD_BLACK SN850X.
A compatible NVMe SSD may operate on an earlier PCIe generation, but its maximum performance will be limited by the host platform. For the advertised 7300MB/s-class performance, a compatible PCIe Gen4 x4 connection is recommended.
The latest price of Western Digital SN850X GEN 4 NVMe 1TB SSD in Bangladesh is 11,500৳. You can buy the Western Digital SN850X GEN 4 NVMe 1TB SSD at best price from our website or visit any of our showrooms.