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Green rectangular M.2 2280 SSD with gold edge connector and black label, no heatsink

SanDisk

SanDisk Optimus GX PRO 850X 8TB internal SSD SDSP81800TAN-000E0

SKU CH-FG9A-G6MVX MPN SDSP81800TAN-000E0

An 8 TB M.2 2280 NVMe SSD using PCIe 4.0 x4 and 3D NAND TLC with sequential reads up to 7200 MBps, writes up to 6600 MBps, and 1,200,000 IOPS random performance

  • Device TypeInternal Solid State Drive (SSD)
  • Form FactorM.2 2280-D5-M
  • Capacity8TB
  • Memory Components3D NAND TLC
  • InterfacePCI-Express 4.0 x4
  • ProtocolNVMe 1.4

Capacity 8TB

  • 1TB
  • 1TB w/ Heatsink
  • 2TB
  • 2TB w/ Heatsink
  • 4TB
  • 4TB w/ Heatsink
  • 8TB
  • 8TB w/ Heatsink

Struck-through versions exist but are not stocked here.

  • Sequential reads up to 7200 MBps accelerate game loading
  • Sequential writes up to 6600 MBps speed up creative exports
  • Random read and write up to 1,200,000 IOPS keep multitasking responsive
  • 4800 TBW endurance rating supports heavy write workloads
  • 8 TB capacity stores large libraries without deleting files

Capacity and interface

The SanDisk Optimus GX PRO 850X is an 8TB internal SSD using the M.2 2280-D5-M form factor. It connects through a PCI-Express 4.0 x4 interface with NVMe 1.4 protocol. The drive targets gamers and creators who need high-capacity storage for large game libraries and creative projects.

Installation notes

The module measures 3.88mm in height, 22mm in width and 80mm in depth, weighing 8.6g. It ships without a heatsink, so motherboard-integrated cooling or an aftermarket spreader is recommended for sustained workloads. The single-sided M.2 2280-D5-M layout fits most desktop and laptop slots, but verify clearance around neighbouring components before fitting.

Compatibility checklist

Confirm your motherboard or laptop provides an M.2 slot keyed for PCIe 4.0 x4 NVMe operation. Check that the system BIOS supports NVMe 1.4 and that the operating system includes a compatible driver. Ensure the platform can supply up to 8.0W during write activity and that airflow keeps the drive within the 0°C to 85°C operating range.

Highlights

  • Sequential reads up to 7200 MBps accelerate game loading
  • Sequential writes up to 6600 MBps speed up creative exports
  • Random read and write up to 1,200,000 IOPS keep multitasking responsive
  • 4800 TBW endurance rating supports heavy write workloads
  • 8 TB capacity stores large libraries without deleting files

Specifications

BrandSanDisk
SeriesOptimus GX PRO 850X
ModelSDSP81800TAN-000E0
Device TypeInternal Solid State Drive (SSD)
Form FactorM.2 2280-D5-M
Capacity8TB
Memory Components3D NAND TLC
InterfacePCI-Express 4.0 x4
ProtocolNVMe 1.4
CacheNo DRAM (SLC)
Max Sequential ReadUp to 7200 MBps
Max Sequential WriteUp to 6600 MBps
4KB Random ReadUp to 1,200,000 IOPS
4KB Random WriteUp to 1,200,000 IOPS
Terabytes Written (TBW)4800TB
MTBF1,750,000 hours
HeatSinkwithout HeatSink
Power Consumption (Idle)5 mW
Power Consumption (Active)Average Active Power Read: 6.7W
Average Active Power Write: 8.0W
Operating Temperature0°C ~ +85°C
Storage Temperature-40°C ~ +85°C
Max Shock Resistance1,500G @ 0.5 ms half-sine
Max Vibration ResistanceOperating Vibration: 5 gRMS, 10-2000 Hz, 3 axes
Non-operating Vibration: 4.9 gRMS, 7-800 Hz, 3 axes
Height3.88mm
Width22mm
Depth80mm
Weight8.6g
Shipping weight0.05 kg
Package size127 × 102 × 1 mm

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How can I confirm the drive is running at its rated 7200 MBps sequential read speed after installation?

Use the SanDisk Dashboard application on Windows to monitor real-time performance and run a benchmark that shows sequential read speeds approaching 7200 MBps over the PCIe 4.0 x4 link.

What accessories are included with the 8TB Optimus GX PRO 850X and what must I supply myself?

The package contains only the M.2 2280-D5-M SSD itself; you must provide a compatible motherboard M.2 slot, a mounting screw, and an aftermarket heatsink because the drive ships without one.

Which capacity should I choose if I need the highest endurance rating for heavy creative workloads?

The 8TB model delivers the maximum 4800 TBW endurance figure, making it the best choice for sustained write-intensive projects.

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