WESTERN DIGITAL 

WESTERN DIGITAL SDSP81400TAN-000E0 SANDISK OPTIMUS GX PRO 850X PCIE 4000GB M2

Mfg Part Number:  SDSP81400TAN-000E0  
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Price: $2,208.92
Quantity:
In Stock: 30
Last Updated: Jun 20, 2026
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Elite performance for champions.

Champion your gaming sessions and creative workflows with the SANDISK Optimus GX PRO 850X NVMe SSD. Load levels fast and push through your creative workflow with PCIe 4.0 Sequential Read/Write speeds up to 7,300/6,600 MB/s2 (2TB1 and 4TB1 models). With Random Read/Write speeds up to 1.2M/1.2M IOPS2 (8TB1 model) and integrated SANDISK nCache 4.0 technology, experience seamless game sessions and smooth multitasking. Integrated SANDISK Optimus heatsink helps your drive minimize throttle for those intense game or work sessions. Store your large games and digital assets with capacities up to 8TB1 on M.2 2280 built with trusted SANDISK BiCS TLC 3D NAND. Engineered for video editing with an endurance rating of up to 4,800 TBW3 (8TB1 model). Help protect your projects and data with TCG Opal v2.01 data-at-rest encryption.4 With Microsoft® DirectStorage support, you're ready for future games. Ideal for gaming PCs, creator PCs, and laptops.

Dominate your game session and creative projects

Load levels fast and push through your creative workflow with PCIe 4.0 Sequential Read/Write speeds up to 7,300/6,600 MB/s2 (2TB1 and 4TB1 models). This SSD is ready for anything from blazing fast video editing to intense gaming sessions.

Stay in the game

With Random Read/Write speeds up to 1.2M/1.2M IOPS2 (8TB1 model) and integrated SANDISK nCache 4.0 technology, experience seamless game sessions and smooth multitasking. Get ready for future games supporting Microsoft DirectStorage.

No need to delete

Stop deleting to make room for more games and applications. With capacities up to 8TB powered by trusted SANDISK BiCS TLC 3D NAND on M.2 2280, you'll have room for more.

Designed with the creator in mind

Up to a 4,800 TBW3 (8TB1 model) endurance rating means your drive stays by your side through rigorous content creation workflows. You can also help protect your digital assets with TCG Opal v2.01 data-at-rest encryption.

You can do more with SANDISK software

The downloadable SANDISK Dashboard application5 (Windows only) keeps your drive up to date, monitors its health, and enables Game Mode to transform your gaming experience. Plus, Acronis True Image for SANDISK software6 helps you migrate to your new drive.

Rest easy

Your hard work is covered with our Sandisk's 5-year limited warranty for peace of mind.

Heatsink for cool operation and blazing speeds

Enjoy sustained high performance thanks to the integrated heatsink that's not only eye-catching, but also helps your rig maintain peak performance through intense workloads. Compatible with PS5 and PS5 Pro consoles.


Main Specification
General Information
Manufacturer Western Digital Corporation
Manufacturer Part Number SDSP81400TAN-000E0
Manufacturer Website Address http://www.wdc.com
Brand Name SanDisk
Product Line Optimus GX PRO
Product Series 850X
Product Model SDSP81400TAN-000E0
Product Name Optimus GX PRO 850X NVMe SSD - 4 TB, Without Heatsink
Product Type Solid State Drive
Technical Information
Storage Capacity 4 TB
Platform Supported PC
Drive Performance
Random 4KB Read 1200000IOPS
Random 4KB Write 1100000IOPS
Endurance (TBW) 2400 TB
Maximum Sequential Read 7.13 GB/s
Maximum Sequential Write 6.45 GB/s
Interfaces/Ports
Drive Interface PCI Express NVMe
Drive Interface Standard PCI Express NVMe 4.0 x4
Physical Characteristics
Drive Type Internal
Form Factor M.2 2280
Height 0.2"
Width 0.9"
Length 3.1"
Weight (Approximate) 0.30 oz
Miscellaneous
Operating System Compatibility Windows 10+
Compatibility
  • Playstation 5
  • Playstation 5 Pro Console


Device Supported Notebook
Device Supported PlayStation
Device Supported Workstation
Device Supported Gaming PC
Device Supported Gaming Console
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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