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WD_BLACK 8TB SN850X NVMe Internal Gaming SSD Solid State Drive - Gen4 PCIe, M.2 2280, Up to 7,300 MB/s - WDS800T2X0E
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- TRANSFORM YOUR PC. Get top-tier performance and ridiculously short load times for your gaming PC or workstation with insane speeds up to 7,300 MB/s (1TB – 8TB models).
- MORE ROOM, MORE GAMES. Capacities up to 8TB built with Western Digital® TLC 3D NAND, means you get to download more games — and stop deleting your favorites.
- HEATSINK FOR THE WIN. All capacities have an optional heatsink version to help maintain peak performance through your most intense gaming sessions.
- DO MORE WITH DASHBOARD. The downloadable WD_BLACK™ Dashboard (Windows® only) monitors your drive’s health, lets you customize your RGB lighting (heatsink versions only), and can automatically detect games to turn on Game Mode 2.0.
- FUTURE-FORWARD FEATURES. The WD_BLACK™ SN850X boasts a powerful suite of features, including Predictive Loading, Overhead Balancing, and Adaptive Thermal Management (ATM)
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Overview
Specs
Reviews (1,293)
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Overview
The Western Digital WD_BLACK SN850X is an 8TB NVMe internal gaming SSD for consumer gaming PCs and workstations. Its PCIe 4.0 x4 interface, M.2 2280 form factor, and high sequential and random performance support game storage and demanding workloads.
Key Features
- 8TB capacity with Western Digital TLC 3D NAND
- Up to 7,200 MBps sequential read and 6,600 MBps sequential write
- Up to 1,200,000 IOPS for 4KB random read and write
- WD_BLACK Dashboard software for Windows
- Predictive Loading, Overhead Balancing, and Adaptive Thermal Management
Performance
The drive delivers up to 7,200 MBps sequential read speed and up to 6,600 MBps sequential write speed. 4KB random read and 4KB random write performance reach up to 1,200,000 IOPS. It includes 8GB of DRAM cache.
Design
The SSD uses an M.2 2280 form factor and measures 3.88mm high, 22mm wide, and 80mm deep. It weighs 8.6g and is specified without a heatsink.
Connectivity & Compatibility
The drive uses the NVMe protocol and a PCI-Express 4.0 x4 interface in an M.2 2280 form factor. Compatibility depends on a system with a supported M.2 slot and PCI-Express 4.0 x4 interface.
Reliability & Durability
The SN850X is rated for 4,800TBW and has an MTTF of 1.75M hours. Maximum shock resistance is 1,500G at 0.5ms half sine. Operating temperature is 32°F to 185°F (0°C to 85°C), and storage temperature is -40°F to 185°F (-40°C to 85°C).
Software & Tools
The downloadable WD_BLACK Dashboard is for Windows only. It monitors drive health and can automatically detect games to turn on Game Mode 2.0.
Specifications
- Brand: Western Digital
- Series: Black
- Model: SN850X
- Part Number: WDS800T2X0E
- Capacity: 8TB
- Protocol: NVMe
- Interface: PCI-Express 4.0 x4
- Form Factor: M.2 2280
- Max Sequential Read: Up to 7,200 MBps
- Max Sequential Write: Up to 6,600 MBps
- 4KB Random Read: Up to 1,200,000 IOPS
- 4KB Random Write: Up to 1,200,000 IOPS
- Cache: 8GB DRAM
- Terabytes Written (TBW): 4,800TB
- MTTF: 1.75M Hours
- HeatSink: without HeatSink
- Height: 3.88mm
- Width: 22mm
- Depth: 80mm
- Weight: 8.6g
- Power Consumption (Active): Average Active Power: 130mW; Maximum Operating Power: 8W
- Power Consumption (Idle): PlayStation: 5mW
- Max Vibration Resistance: Operating Vibration: 5 gRMS, 10-2000 Hz, 3 axes; Non-operating Vibration: 4.9 gRMS, 7-800 Hz, 3 axes
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 5 years
- Limited Warranty period (labor): 5 years
- Read full details
Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
- This item is covered by Newegg.com's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-800-275-4932
- Support Website
- View other products from SanDisk
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The WD_BLACK SN850X 8TB is a heatsink-free M.2 2280 PCIe 4.0 NVMe SSD with up to 7,200 MB/s sequential reads and 6,600 MB/s writes, suited to gamers and creators who need fast storage for large game libraries and demanding PC workloads.
Recommended For
- PC gamers with large libraries who want to keep many games installed on one M.2 drive; the 8TB capacity combines game-storage space with PCIe 4.0 performance.
- PC builders with only one available M.2 slot who need up to 8TB of fast internal storage for a game library or other large files; reviewers identify single-stick capacity as a key reason to choose this drive.
- Workstation users who keep large project files on a fast local drive and want substantial capacity without splitting storage across several drives; reviewers found the 8TB model suitable for more than game storage.
- PS5 owners who want to expand internal game storage to a very large capacity and are prepared to add a compatible heatsink; community reports describe using the SN850X for PS5 game libraries, while this specific model is sold without a heatsink.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Gaming storage for PC systems and the listed Sony PlayStation 5 console model |
| Capacity | 8TB internal solid-state storage |
| Interface And Form Factor | M.2 2280 NVMe SSD using PCIe 4.0 x4 |
| Read Write Performance | Sequential speeds up to 7,200 MB/s read and 6,600 MB/s write; random read and write up to 1,200,000 IOPS each |
| Cache And Endurance | 8GB DRAM cache, 4,800TB total bytes written endurance rating, and 1.75 million-hour MTTF |
| Power Consumption | Average active power of 130mW, maximum operating power of 8W, and PlayStation idle power of 5mW |
| Operating Conditions And Durability | Operating temperature: 0°C to 85°C; storage temperature: -40°C to 85°C; shock resistance up to 1,500G at 0.5ms, with specified operating and non-operating vibration resistance |
| Physical Specifications | 80 × 22 × 3.88mm; weight 8.6g; supplied without a heatsink |
| Features And Compatibility | Supports Microsoft DirectStorage and includes WD_BLACK Dashboard, Game Mode 2.0, Predictive Loading, Overhead Balancing, and Adaptive Thermal Management; listed as compatible with laptops and motherboards |
| Model Identifiers | Western Digital WD_BLACK SN850X, part number WDS800T2X0E |