SANDISK 1TB Optimus™ GX PRO 850X PCIe® 4.0 x4 M.2 2280 NVMe™ SSD - SDSP81100TAN-000E0
- CHAMPION YOUR GAME SESSION AND CREATIVE WORKFLOW. Boasting PCIe® Gen 4.0 Sequential Read/Write speeds up to 7,300/6,300MB/s (1TB), 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 (8TB 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 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 (8TB model) endurance rating, your drive stays by your side. Help protect your digital assets with TCG Opal v2.01 data-at-rest encryption.
- YOU CAN DO MORE WITH SANDISK® SOFTWARE. Download the SANDISK® Dashboard application (Windows® only) to help keep your drive in peak shape. Or turn on Game Mode to transform your gaming experience.
- REST EASY. Your hard work is covered with Sandisk’s 5-year limited warranty for peace of mind
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Overview
Specs
Reviews
Elite performance for championsChampion 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 (2TB and 4TB models). With Random Read/Write speeds up to 1.2M / 1.2M IOPS (8TB 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 8TB 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 TBW (8TB model). Help protect your projects and data with TCG Opal v 2.01 data-at-rest encryption. With Microsoft DirectStorage support, you're ready for future games. Ideal for gaming PCs, creator PCs, and laptops. Dominate your game session and creative projectsLoad levels fast and push through your creative workflow with PCIe 4.0 Sequential Read/Write speeds up to 7, 300/6, 600 MB/s (2TB and 4TB models). This SSD is ready for anything from blazing fast video editing to intense gaming sessions.
Stay in the gameWith Random Read/Write speeds up to 1.2M / 1.2M IOPS (8TB 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 deleteStop 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 mindUp to a 4, 800 TBW (8TB 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 v 2.01 data-at-rest encryption. You can do more with SANDISK softwareThe downloadable SANDISK Dashboard application (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 software helps you migrate to your new drive. Heatsink for cool operation and blazing speedsEnjoy 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.
2 2280 built with trusted SANDISK BiCS TLC 3D NAND. Engineered for video editing with an endurance rating of up to 4, 800 TBW (8TB model). Help protect your projects and data with TCG Opal v 2.01 data-at-rest encryption. With Microsoft DirectStorage support, you're ready for future games. Ideal for gaming PCs, creator PCs, and laptops. Dominate your game session and creative projectsLoad levels fast and push through your creative workflow with PCIe 4.0 Sequential Read/Write speeds up to 7, 300/6, 600 MB/s (2TB and 4TB models). This SSD is ready for anything from blazing fast video editing to intense gaming sessions.
Stay in the gameWith Random Read/Write speeds up to 1.2M / 1.2M IOPS (8TB 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 deleteStop 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 mindUp to a 4, 800 TBW (8TB 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 v 2.01 data-at-rest encryption. You can do more with SANDISK softwareThe downloadable SANDISK Dashboard application (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 software helps you migrate to your new drive. Heatsink for cool operation and blazing speedsEnjoy 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.
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, 2026
- Return for replacement until: January 31, 2026
- This item is covered by Newegg.ca's Extended Holiday Return Policy.
- Read full return policy for details.
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Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-866-726-3475
- Support Website
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The SanDisk Optimus GX PRO 850X is a 1TB M.2 2280 PCIe 4.0 x4 NVMe SSD with sequential read speeds up to 7,300 MB/s and write speeds up to 6,300 MB/s, suited to gamers and creators upgrading a compatible system for fast storage.
Recommended For
- PC gamers building or upgrading a system with a compatible PCIe 4.0 M.2 slot who want a fast drive for Windows and their regularly played games; independent testing of the SN850X lineage found strong gaming-storage benchmark performance.
- Video editors and other creators who work from a compatible desktop or laptop and want responsive local storage for active projects, media assets, and application files; SanDisk specifically positions the drive for creative workflows and video editing.
- Laptop owners upgrading a system with an available M.2 2280 NVMe slot who want a high-speed internal drive and have a suitable way to manage SSD heat; SanDisk lists laptops among the intended systems, and this version does not include a heatsink.
Real-World Use Scenarios
- Installing it in a gaming PC for frequently played games can make launches and level loads feel responsive, especially when replacing a hard drive or older SATA SSD; compared with another fast NVMe drive, the difference may be less noticeable.
- Using it as a workspace for video-editing projects can help with loading and moving large media files; editing performance will also depend on the computer, software, and the rest of the workflow.
- Keeping a rotating set of PC games and creative apps on one drive can reduce the need to uninstall titles between sessions; at 1TB, users with large libraries may still need to choose which games stay installed.
- Using it as a boot and application drive in a compatible PC can keep Windows, programs, and everyday files on fast solid-state storage, supporting quick access during normal desktop use.
- Adding it to a compatible laptop or desktop as a secondary M.2 drive can provide space for games and project files without replacing the existing system drive; check the device’s M.2 support and cooling clearance before installation.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Internal storage for desktop and laptop use, including gaming, business, and personal workloads |
| Capacity And NAND | 1TB capacity with 3D TLC NAND flash |
| Interface And Form Factor | M.2 2280 internal SSD using PCIe 4.0 x4 and NVMe 1.4 |
| Read And Write Performance | Sequential speeds up to 7,300 MB/s read and 6,300 MB/s write; 4KB random performance up to 800,000 IOPS read and 1,100,000 IOPS write |
| Endurance And Reliability | Rated for 600TB written and 1,750,000 hours MTBF |
| Power And Operating Conditions | Idle power consumption of 5mW; average active power of 7.2W reading and 6.2W writing. Operating temperature: 0°C to 85°C; storage temperature: -40°C to 85°C |
| Shock And Vibration Resistance | Shock resistance up to 1,500G at 0.5ms half-sine; operating vibration 5gRMS and non-operating vibration 4.9gRMS, each across the specified frequency ranges and three axes |
| Physical Specifications | 80 × 22 × 2.38mm; 7.5g; no heatsink |
| Compatibility | Listed for desktop and laptop devices, and Sony PlayStation 5 and Microsoft Xbox Series S console models |
| Model Identifiers | SanDisk Optimus GX PRO 850X; model SDSP81100TAN-000E0 |
Reference Q&A
Q: Is the SanDisk Optimus GX PRO 850X faster than the WD_BLACK SN850X?
A: Not as a meaningful upgrade: the Optimus GX PRO 850X is the SanDisk-branded continuation of the WD_BLACK SN850X, and reporting on the rebrand says the hardware is essentially unchanged. Choose between them based on price, availability, and warranty terms; replacing an SN850X with this drive is not a performance upgrade.
Q: Should I choose this or the 1TB SanDisk Optimus GX 7100?
A: For gaming and everyday PC use, compare the actual prices and features rather than assuming the 850X is faster in every task. SanDisk rates the 1TB 850X at up to 7,300 MB/s read and 6,300 MB/s write; the 1TB GX 7100 is rated up to 7,250 MB/s read and 6,900 MB/s write. The 850X has a slight rated read advantage, while the GX 7100 has a higher rated sequential write speed. Choose the GX 7100 if it offers better value; consider the 850X when its product features or price better suit your needs.
Q: Is the PCIe 5.0 Optimus GX PRO 8100 worth choosing over this PCIe 4.0 SSD?
A: Choose the GX PRO 8100 if your system supports PCIe 5.0 and you regularly move large files or run storage-heavy workloads: SanDisk rates it up to 14,900 MB/s sequential read, versus up to 7,300 MB/s for the 850X. For a PCIe 4.0 system, or a drive used mainly for gaming and everyday tasks, the 850X is the compatible match; the 8100’s higher rated speeds require a suitable PCIe 5.0 platform to take advantage of them.
Q: Should I get the 850X without a heatsink or a heatsink-equipped SSD?
A: Choose this no-heatsink 850X if your M.2 slot already has a suitable heatsink or you plan to add one. If the installation has no cooling solution—such as a compatible console expansion slot—select a heatsink-equipped drive or provide a compatible heatsink separately.
Q: Will this SSD work in my laptop or desktop?
A: It can fit a system with an available M.2 2280 slot that supports PCIe NVMe SSDs. Check the computer’s specifications for slot compatibility and clearance before buying; this drive has no built-in heatsink.
Q: Does this SSD need a heatsink?
A: The drive does not include a heatsink. Check whether your computer has an M.2 heatsink or thermal cover for the slot; if not, follow the system manufacturer’s guidance on cooling. Confirm that any added heatsink fits your device.
Q: Is this SSD suitable for gaming and creative work?
A: It is a PCIe 4.0 x4 NVMe drive rated for sequential reads up to 7,300 MB/s and writes up to 6,300 MB/s. It supports Microsoft DirectStorage games. Actual performance depends on the system and workload, and 1TB may limit how many large games or projects you can keep installed.
Q: Is 1TB enough storage for games and everyday files?
A: 1TB can suit everyday computing and a moderate game or project library. If you keep many large games, media files, or creative projects installed at once, you may need to manage space or add storage.
Q: Is the Optimus GX PRO 850X worth choosing over a Samsung 990 Pro?
A: Reddit users raise this as a price-and-capacity comparison, but the discussion does not establish a clear performance winner. This 1TB model is a PCIe 4.0 TLC drive rated for up to 7,300 MB/s reads, 6,300 MB/s writes, and 600 TBW. Compare the actual prices, capacity, and warranty available to you before choosing.
Q: Is the SanDisk Optimus GX PRO 850X basically the same SSD as the WD Black SN850X?
A: Reddit users have asked whether the two product lines are the same, but the discussion alone does not verify that every version has identical components. For this SanDisk 1TB model, the provided specifications list PCIe 4.0, TLC NAND, and up to 7,300/6,300 MB/s sequential read/write speeds. Check the exact model number, warranty, and price rather than relying on the family name alone.
Q: If the SSD fails, should I contact SanDisk or the retailer?
A: The product information lists a five-year limited warranty. Reddit users specifically raise questions about whether a claim should go through the manufacturer or seller, but the discussion does not establish the applicable terms for this 1TB model or a particular retailer. Keep the receipt and check the warranty terms for your region and seller.