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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

  • Total capacity8 TB
  • Sequential read speedUp to 7,200 MB/s
  • Sequential write speedUp to 6,600 MB/s
  • Interface typePCI-Express 4.0 x4
  • Form factorM.2 2280-D5-M
  • Product typeInternal Solid State Drive (SSD)

Capacity 8TB

  • 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.

How it compares

Measured against everything we stock in Internal NVMe & SATA SSDs, at today’s prices. Recalculated every night.

Price $1,506.99
Pricier than about 91% of the 1,994 comparable items (median $180.49).
Total capacity 8 TB
Higher than about 94% of the 1,368 comparable items (median 1 TB).
Sequential read speed Up to 7,200 MB/s
Higher than about 83% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $188.37 per TB
Pricier than about 57% of the 1,362 comparable items (median $165.50 per TB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSanDisk
Product lineOptimus GX PRO 850X
Model nameSDSP81800TAN-000E0
Total capacity8 TB
Product typeInternal Solid State Drive (SSD)
Performance
Sequential read speedUp to 7,200 MB/s
Sequential write speedUp to 6,600 MB/s
Random read (4K)Up to 1,200,000 IOPS
Random write (4K)Up to 1,200,000 IOPS
Storage
NAND flash type3D NAND TLC
Cache memoryNo DRAM (SLC)
Write endurance4800 TB
Connectivity
Connection protocolNVMe 1.4
Ports & slots
Interface typePCI-Express 4.0 x4
Power
Idle power draw5 mW
Active power drawAverage Active Power Read: 6.7 W
Average Active Power Write: 8.0 W
Size & build
Form factorM.2 2280-D5-M
Heat sinkWithout HeatSink
Overall height3.88 mm
Overall width22 mm
Product depth80 mm
Product weight8.6g
Shipping weight0.05 kg
Package size127 × 102 × 1 mm
Environment & compliance
Operating temperature range0 °C to 85 °C
Storage temperature range-40 °C to 85 °C
Max shock tolerance1,500G @ 0.5 ms half-sine
Vibration toleranceOperating Vibration: 5 gRMS, 10-2000 Hz, 3 axes
Non-operating Vibration: 4.9 gRMS, 7-800 Hz, 3 axes
More details
Mean time between failures1,750,000 h

Other versions of this model

5 more in the same range

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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