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Sandisk Optimus GX PRO 4TB 850X NVMe SSD Internal Solid State Drive - Gen4 PCIe, M.2 2280, Up to 7,300 MB/s Read Speed - SDSP81400TAN

Sandisk Optimus GX PRO 4TB 850X NVMe SSD Internal Solid State Drive (SDSP81400TAN)

Bottom line: The Sandisk Optimus GX PRO 4TB 850X NVMe SSD Internal Solid State Drive is a specs-and-price decision rather than a crowd-consensus one in the ssds & storage category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For SSDs and PC storage upgrades, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Before you buy

  • Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

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/s[2] (2TB[1] and 4TB[1] models). With Random Read/Write speeds up to 1.2M/1.2M IOPS[2] (8TB[1] model) and integrated SANDISK nCache 4.0 technology, experience seamless game sessions and smooth multitasking. Store your large games and digital assets with capacities up to 8TB[1] on M.2 2280 built with trusted SANDISK BiCS TLC 3D NAND. Engineered for video editing with an…

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SpecPicks Verdict

SpecPicks scored Sandisk Optimus GX PRO 4TB 850X NVMe SSD Internal Solid State Drive using a rating × review-volume × price-fit model applied to published specs and reviews across the ssds & storage category. Compare with similarly-priced alternatives in the ssds & storage category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for ssds & storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • CHAMPION YOUR GAME SESSION AND CREATIVE WORKFLOW. Boasting PCIe Gen 4.0 Sequential Read/Write speeds up to 7,300/6,600 MB/s[2] (2TB[1] and 4TB[1] models), your SSD enhances your game sessions and your creative workflow.
  • STAY IN THE GAME. Experience seamless game sessions and smooth multitasking with Random Read/Write speeds up to 1.2M/1.2M IOPS[2] (8TB[1] model) and integrated SANDISK nCache 4.0 technology. Supports Microsoft DirectStorage games.
  • NO NEED TO DELETE. Stop deleting to make room for more games or applications. With capacities up to 8TB[1] and trusted SANDISK BiCS TLC 3D NAND, you’ll have room for more.
  • DESIGNED WITH THE CREATOR IN MIND. With up to 4,800 TBW[3] (8TB[1] model) endurance rating, your drive stays by your side. Help protect your digital assets with TCG Opal v2.01 data-at-rest encryption.[4]
  • YOU CAN DO MORE WITH SANDISK SOFTWARE. Download the SANDISK Dashboard application[5] (Windows only) to help keep your drive in peak shape. Or turn on Game Mode to transform your gaming experience.

Full Specifications

BrandSandisk
Model NameSANDISK Optimus GX PRO 850X PCIe 4.0 NVMe SSD
Read Speed7300 Megabytes Per Second
Unit Count1.0 Count
Form FactorM.2 2280
Media Speed6600 megabytes_per_second
Model NumberSDSP81400TAN
Built-In MediaSANDISK Optimus GX PRO 850X PCIe 4.0 NVMe SSD
Hard Disk Size4 TB
Hard-Drive Size4 TB
Mfr Part NumberSDSP81400TAN
Number of Items1
Special FeaturePCIe 4.0
Installation TypeInternal Hard Drive
Compatible DevicesDesktop, Laptop
Data Transfer Rate7300 Megabytes Per Second
Additional FeaturesPCIe 4.0
Hard Disk InterfaceNVMe
Warranty Description5 Year Limited
Hard Disk DescriptionSolid State Drive
Full listing titleSandisk Optimus GX PRO 4TB 850X NVMe SSD Internal Solid State Drive - Gen4 PCIe, M.2 2280, Up to 7,300 MB/s Read Speed - SDSP81400TAN

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Sandisk Optimus GX PRO 4TB 850X NVMe SSD Internal Solid State Drive - Gen4 PCIe, M.2 2280, Up to 7,300 MB/s Read Speed - SDSP81400TAN is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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Sandisk Optimus GX PRO 4TB 850X NVMe SSD Internal Solid State Drive - Gen4 PCIe, M.2 2280, Up to 7,300 MB/s Read Speed - SDSP81400TAN
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