here!
I’m your shopping assistant for PC builds, upgrades, and everything tech.
Got questions? Ask away!
Start a conversation
- Free 30-day Returns
$2,049.99
Add to PC build list
Login to Make an Offer
Sold by Newegg
Shipped by Newegg
Best Sellers
Top Rated- $2,049.99
- + FREE SHIPPING
Top Rated- $2,225.53
- + FREE SHIPPING
Sponsored Products
SANDISK 8TB Optimus™ GX PRO 850X PCIe® 4.0 x4 M.2 2280 NVMe™ SSD with Heatsink - SDSP81800TAH-000E0
- CHAMPION YOUR GAME SESSION AND CREATIVE WORKFLOW. Boasting PCIe® Gen 4.0 Sequential Read/Write speeds up to 7,300/6,600MB/s (2TB and 4TB 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 (8TB model) and integrated SANDISK® nCache™ 4.0 technology. Supports 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.
- 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 (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
+
+
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 an 8TB PCIe 4.0 NVMe M.2 2280 SSD with an integrated heatsink, designed for gamers who want substantial space for a large game library alongside up to 1.2 million random read and write IOPS.
Recommended For
- PC and PS5/PS5 Pro gamers who want one internal drive for a large installed game library; SanDisk lists the heatsink model as console-compatible, and the 8TB capacity reduces the need to rotate games.
- Video editors and other creators working with large project files who want a high-capacity PCIe 4.0 scratch or working drive; SanDisk rates the 8TB model for up to 4,800 TBW and positions the series for demanding creative workflows.
- Desktop workstation owners with an M.2 2280 PCIe 4.0 x4 slot who need one fast drive for games, applications, and large files; its integrated heatsink is intended to help sustain performance under heavy workloads.
- Users replacing several smaller game or media drives with a single high-capacity M.2 drive, provided they also keep a separate backup of important files.
Real-World Use Scenarios
- A PC gamer keeping a large library of installed games can use the 8TB drive to reduce how often they uninstall titles to free space.
- A PS5 or PS5 Pro owner who needs more room for installed games can use the heatsink-equipped drive as an internal M.2 storage expansion, subject to the console’s installation requirements.
- A video editor working with large footage libraries can keep more active media and project files on one internal drive, with the 8TB model’s stated endurance suited to repeated content-creation workloads.
- A PC user running a game alongside voice chat, a launcher, or other apps can use the drive for the game library and everyday multitasking; the SSD supports these workloads, though it does not guarantee a particular frame rate or eliminate game stutter.
- A creator moving between active projects can use the drive to store working files and project assets locally, while the integrated heatsink is intended to help manage heat during sustained workloads.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Internal 8TB storage for gaming, personal, or business use in compatible desktop or laptop systems |
| Capacity And Memory | 8TB SSD with 3D TLC NAND flash |
| Interface And Form Factor | M.2 2280 internal drive using PCIe 4.0 x4 and NVMe 1.4 |
| Read And Write Performance | Sequential speeds up to 7,200 MB/s read and 6,600 MB/s write; 4K random performance up to 1,200,000 IOPS for both reads and writes |
| Endurance And Reliability | Rated for 4,800 TBW and 1,750,000 hours MTBF |
| Cooling | Includes a heatsink |
| Power Consumption | 5 mW idle; average active power is 6.7 W for reads and 8.0 W for writes |
| Operating Conditions And Shock Resistance | Operating temperature 0°C to +85°C; storage temperature −40°C to +85°C; shock resistance up to 1,500G at 0.5 ms half-sine |
| Vibration Resistance | Operating: 5 gRMS, 10–2000 Hz, 3 axes; non-operating: 4.9 gRMS, 7–800 Hz, 3 axes |
| Dimensions And Weight | 80 × 24 × 10.31 mm; 30.4 g |
| Compatibility | Listed for desktop and laptop systems, and for Sony PlayStation 5 and Microsoft Xbox Series S |
| Model Identifiers | SanDisk Optimus GX PRO 850X; model SDSP81800TAH-000E0 |
Reference Q&A
Q: Is the Optimus GX PRO 850X 8TB different from the WD_BLACK SN850X 8TB?
A: They are close product-line counterparts: SanDisk positioned the Optimus GX PRO 850X as the replacement for the WD_BLACK SN850X. Both are PCIe 4.0 x4 M.2 drives; choose this 8TB model for its SanDisk branding, included heatsink, and 8TB capacity. Consider an SN850X if you find it at a better price and its specifications and warranty suit your needs.
Q: Should I get the Optimus GX PRO 850X or the PCIe 5.0 GX PRO 8100?
A: Choose the GX PRO 8100 if your system supports PCIe 5.0 and your work benefits from higher advertised sequential transfer speeds: SanDisk rates its 2TB and 4TB models up to 14,900/14,000 MB/s read/write. Choose this 850X if PCIe 4.0 meets your needs; its 8TB model is rated up to 7,200/6,600 MB/s and includes a heatsink. Actual performance depends on the system and workload.
Q: Should I buy the 8TB 850X or the 4TB version?
A: Choose the 8TB model if you want more room for a large game library or creative files without relying on additional drives. Choose 4TB if that capacity is sufficient and you prefer not to pay for storage you may not use. Both are 850X PCIe 4.0 M.2 SSDs; compare the exact capacity-specific specifications before buying.
Q: Should I choose the 850X with or without a heatsink?
A: Choose this heatsink-equipped version if you want the drive’s cooling hardware included and have enough clearance in the M.2 slot. Choose the 850X without a heatsink if your motherboard or device has an M.2 cover or heatsink you plan to use, or if the installed heatsink would not fit. Check your system’s slot clearance before purchasing.
Q: Is this SSD suitable for gaming and creative work?
A: It is suited to compatible systems running games or large creative projects that benefit from fast storage and high capacity. The 8TB drive uses PCIe 4.0 x4 NVMe and is rated for sequential speeds up to 7,200 MB/s read and 6,600 MB/s write; actual speeds depend on the host system and workload.
Q: Will it fit in my laptop?
A: It may fit if the laptop has a compatible M.2 2280 NVMe slot, supports an 8TB drive, and has enough room for the included heatsink. The listed drive height is 10.31 mm, so check the laptop’s slot clearance and manufacturer guidance before buying.
Q: Will it work in my desktop PC?
A: It requires an M.2 2280 slot that supports PCIe NVMe. For the listed PCIe 4.0 x4 speeds, the system must support PCIe 4.0 x4; also check that the built-in heatsink clears nearby components or the motherboard’s M.2 cover.
Q: Can I use it in an external SSD enclosure?
A: Potentially, if the enclosure supports M.2 2280 NVMe drives, accommodates the SSD’s integrated heatsink, and supports an 8TB drive. Check the enclosure’s compatibility and clearance specifications before purchasing; the SSD itself is an internal drive and does not connect directly over USB.
Q: Is the Optimus GX PRO 850X worth buying over a Samsung 990?
A: It depends on the price and capacity you need. A Reddit comparison asks about choosing a 2TB GX PRO 850X over a 1TB Samsung 990, but the supplied specifications are for this 8TB model. For this version, the main decision points are its 8TB capacity, PCIe 4.0 interface, and included heatsink; compare current prices and warranty terms before choosing.
Q: Is the GX PRO 850X basically the same drive as the WD Black SN850X?
A: Reddit discussions describe the GX PRO 850X as a rebranded SN850X. Treat that as a model-family comparison, not proof that every capacity or heatsink version is identical in every detail. This listing specifies an 8TB PCIe 4.0 drive with a heatsink.
Q: Will it work in a PCIe 3.0 M.2 slot?
A: A Reddit discussion notes that the drive can be used in a PCIe 3.0 system, but it will not reach its full PCIe 4.0 speeds there. Check that the motherboard supports an M.2 2280 NVMe drive and has enough clearance for this model’s integrated heatsink.