here!
I’m your shopping assistant for PC builds, upgrades, and everything tech.
Got questions? Ask away!
Start a conversation
- Free 30-day Returns
$289.99
Add to PC build list
Login to Make an Offer
Sold by Newegg
Shipped by Newegg
Best Sellers
Top Rated- $296.58
- + $7.85 Shipping
Top Rated- $319.14
- + FREE SHIPPING
Top Rated- $366.21
- + FREE SHIPPING
SanDisk Optimus GX PRO 850X M.2 2280-D5-M 1TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81100TAH-000E0
- 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.
- COOL OPERATION, BLAZING SPEEDS. Includes the SANDISK Optimus heatsink with integrated programmable RGB LED to help your drive minimize throttle and maintain peak performance.
- 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.
+
+
Overview
Specs
Reviews
See all Q & A 
Any questions? Ask CelesteSM will help you find out quickly.
Try me now
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 within: 30 days
- Return for replacement within: 30 days
- This item is covered by Newegg.com's 30-Day Return Policy.
- Read full return policy for details.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-866-726-3475
- Support Website
- View other products from SanDisk
LOADING...
LOADING...
The SanDisk Optimus GX PRO 850X is a 1TB M.2 2280 NVMe SSD with a PCIe 4.0 x4 interface and heatsink, rated for sequential reads up to 7,300 MB/s and writes up to 6,300 MB/s; it suits PC gamers and creators seeking fast storage in a compatible M.2 slot.
Recommended For
- PC or PS5 gamers adding fast game storage who want an M.2 PCIe 4.0 drive with an integrated heatsink; SanDisk lists the heatsink version as PS5 and PS5 Pro compatible.
- Gaming-PC builders seeking a high-end PCIe 4.0 SSD for game installs and level loading; SanDisk positions the 850X for gaming, and Tom’s Hardware found the closely specified 1TB WD Black SN850X performed near the top of its tested categories.
- Video editors and creative-PC users moving active project files who want a fast TLC-based drive with a heatsink; SanDisk positions the 850X for creative workflows and rates this 1TB model at 600 TBW.
- Builders whose motherboard supports M.2 2280 NVMe and who want the heatsink included rather than sourcing a separate cooler; confirm the heatsink’s clearance against the motherboard or console before installation.
Real-World Use Scenarios
- Adding a game drive to a PCIe 4.0 gaming PC: install a larger game library and spend less time waiting on game loads than with a hard drive; differences from another fast NVMe SSD may be less noticeable.
- Expanding PS5 storage: use the heatsink-equipped drive to add M.2 storage for PS5 games, then download or move games to it instead of relying only on the console’s internal storage.
- Working with large creative-project files: keep active video or other media assets on the PC’s internal drive and move them between storage locations more quickly than with a hard drive; the 1TB capacity may suit active projects better than a large archive.
- Installing a main drive in a gaming or creator PC: store the operating system, everyday applications, and active files on one NVMe drive for responsive startup and app access, provided the motherboard has a compatible M.2 slot.
- Long gaming or work sessions in a compatible desktop or console: the integrated heatsink helps manage drive heat during demanding use, reducing the chance that heat will interrupt performance.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Internal SSD storage for compatible desktops, laptops, or PlayStation 5 systems; suited to gaming, business, and personal use |
| Capacity | 1TB |
| Interface And Form Factor | M.2 2280-D5-M internal drive with PCIe 4.0 x4 and NVMe 1.4; includes a heatsink |
| Read 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 |
| NAND And Cache | 3D NAND TLC with no DRAM and SLC cache |
| Endurance And Reliability | 600TB written endurance and 1,750,000-hour MTBF |
| Power, Thermal And Environmental | 5mW idle power; average active power of 7.2W read and 6.2W write. Operating temperature: 0°C to 85°C; storage temperature: -40°C to 85°C. Shock resistance: 1,500G at 0.5ms half-sine; operating vibration: 5gRMS, 10–2,000Hz, 3 axes; non-operating vibration: 4.9gRMS, 7–800Hz, 3 axes |
| Physical Specifications | 80mm deep × 23mm wide × 8.9mm high; 24g |
| Model Identifiers | SanDisk Optimus GX PRO 850X, model SDSP81100TAH-000E0 |
Reference Q&A
Q: SanDisk Optimus GX PRO 850X or WD_BLACK SN850X—which should I buy?
A: They belong to the same high-performance PCIe 4.0 product lineage: SanDisk positioned the Optimus GX PRO 850X as the successor to the WD_BLACK SN850X. Choose the 850X if its heatsink-equipped configuration or current price suits your build; choose the SN850X if you find it for less. Compare the exact capacity and heatsink version, since advertised specifications vary by model.
Q: Should I get the 1TB 850X or spend more for the 2TB version?
A: Choose the 1TB model for a smaller game library or a tighter budget; its rated endurance is 600 TBW. Choose 2TB if you want more room for games and projects and higher rated endurance: 1,200 TBW. SanDisk rates both capacities at up to 7,300 MB/s sequential read, while the 2TB model is rated for up to 6,600 MB/s sequential write versus 6,300 MB/s for 1TB.
Q: Is the PCIe 5.0 Optimus GX PRO 8100 worth choosing over this 850X?
A: Choose the GX PRO 8100 if your system supports PCIe 5.0 and you regularly move large files or run storage-heavy workloads: its 1TB model is rated up to 14,900 MB/s read and 11,000 MB/s write, compared with the 850X 1TB’s PCIe 4.0 interface and up to 7,300/6,300 MB/s. The 850X is a suitable fit for a PCIe 4.0 build or when you do not need the higher advertised sequential speeds; actual benefit depends on the system and workload.
Q: Will this SSD work in a PS5?
A: Its listed M.2 2280 form factor, PCIe 4.0 x4 interface, up-to-7,300 MB/s sequential read speed, and included heatsink align with key PS5 expansion-drive considerations. Check the console’s current fit requirements and the drive’s installed dimensions before buying; the product data lists its height as 8.9 mm.
Q: Will it fit in my laptop or desktop?
A: It is an internal M.2 2280 NVMe drive, so the computer needs a compatible M.2 2280 slot that supports PCIe NVMe. Check the device’s clearance before buying, especially for a laptop, because this model includes a heatsink and is listed as 8.9 mm high.
Q: Does it include a heatsink, or do I need to buy one separately?
A: The product specifications say this SSD includes a heatsink. Whether you need another cooling solution depends on the device: check for clearance and avoid stacking an additional heatsink over the included one.
Q: What read and write speeds does it support?
A: The listed maximum sequential speeds are up to 7,300 MB/s read and 6,300 MB/s write. These are rated maximums; actual speeds can vary with the computer, workload, and operating conditions.
Q: Is the SanDisk Optimus GX PRO 850X essentially a renamed WD Black SN850X?
A: Reddit discussions describe the GX PRO 850X as a rebranded SN850X. For this 1TB listing, use the supplied specifications to confirm the exact configuration rather than assuming every capacity or version has identical components.
Q: Is the GX PRO 850X worth buying instead of another PCIe 4.0 SSD?
A: It depends on the price and your needs. This listing specifies a 1TB PCIe 4.0 NVMe drive with sequential speeds up to 7,300 MB/s read and 6,300 MB/s write. Compare its price, warranty, capacity, and heatsink fit with alternatives; the product data alone does not establish that it is the better value.
Q: Can I use the GX PRO 850X in a PCIe 3.0 motherboard?
A: A Reddit discussion about the related SN850X considers use in a PCIe 3.0 system. The supplied listing identifies this drive as PCIe 4.0 x4; verify that your motherboard supports M.2 NVMe drives, and expect the system connection—not the drive’s listed maximum—to determine achievable speed.