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SanDisk Optimus GX PRO 850X 1TB M.2 2280 SSD with black heatsink and gold connector

SanDisk

SanDisk Optimus GX PRO 850X 1TB M.2 2280-D5-M internal SSD SDSP81100TAH-000E0

SKU CH-K48A-M2ZKD MPN SDSP81100TAH-000E0

A 1TB internal SSD with PCI-Express 4.0 x4 interface, NVMe 1.4 protocol, 3D NAND TLC memory and a built-in heatsink delivers up to 7300 MBps sequential read and 6300 MBps sequential write speeds

  • Device TypeInternal Solid State Drive (SSD)
  • Form FactorM.2 2280-D5-M
  • Capacity1TB
  • Memory Components3D NAND TLC
  • InterfacePCI-Express 4.0 x4
  • ProtocolNVMe 1.4

Capacity

  • 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 read speed up to 7300 MBps via PCIe 4.0 x4
  • Sequential write speed up to 6300 MBps for fast file transfers
  • Random write up to 1,100,000 IOPS for responsive multitasking
  • 600 TBW endurance with 1,750,000 hours MTBF reliability
  • Integrated heatsink maintains performance under sustained workloads

SanDisk Optimus GX PRO 850X 1TB NVMe SSD

The SanDisk Optimus GX PRO 850X is a 1TB internal solid state drive using the M.2 2280-D5-M form factor. It connects via a PCI-Express 4.0 x4 interface and uses 3D NAND TLC memory with an SLC cache design instead of a DRAM buffer. A heatsink is integrated onto the drive.

Suits builds needing PCIe 4.0 speeds

This drive suits desktops and laptops with an M.2 slot wired for PCIe 4.0 x4 that can accommodate the 8.9mm module height. Systems limited to PCIe 3.0 or slots restricted to single-sided modules should look at other options.

PCI-Express 4.0 x4 interface determines

The drive requires a motherboard or laptop M.2 key-M slot that supports PCI-Express 4.0 x4 electrical operation to reach the stated 7300 MBps read and 6300 MBps write peaks. Without that link width the drive will negotiate a slower speed.

Highlights

  • Sequential read speed up to 7300 MBps via PCIe 4.0 x4
  • Sequential write speed up to 6300 MBps for fast file transfers
  • Random write up to 1,100,000 IOPS for responsive multitasking
  • 600 TBW endurance with 1,750,000 hours MTBF reliability
  • Integrated heatsink maintains performance under sustained workloads

Specifications

BrandSanDisk
SeriesOptimus GX PRO 850X
ModelSDSP81100TAH-000E0
Device TypeInternal Solid State Drive (SSD)
Form FactorM.2 2280-D5-M
Capacity1TB
Memory Components3D NAND TLC
InterfacePCI-Express 4.0 x4
ProtocolNVMe 1.4
CacheNo DRAM (SLC)
Max Sequential ReadUp to 7300 MBps
Max Sequential WriteUp to 6300 MBps
4KB Random ReadUp to 800,000 IOPS
4KB Random WriteUp to 1,100,000 IOPS
Terabytes Written (TBW)600TB
MTBF1,750,000 hours
HeatSinkwith HeatSink
Power Consumption (Idle)5 mW
Power Consumption (Active)Average Active Power Read: 7.2W
Average Active Power Write: 6.2W
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
Height8.9mm
Width23mm
Depth80mm
Weight24g
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

Will the 8.9mm height of the M.2 2280-D5-M Optimus GX PRO 850X fit my laptop slot?

The drive measures 8.9mm tall including its integrated heatsink, so it fits standard M.2 2280 slots that allow double-sided modules with a heatsink.

What is the installation step people skip with the PCIe 4.0 x4 NVMe 1.4 drive?

After seating the module and securing the screw, many forget to enable the PCIe 4.0 x4 link in BIOS so the drive runs at NVMe 1.4 speeds instead of falling back to an older generation.

When should I plan to replace the 1TB 3D NAND TLC drive based on its 600TB endurance rating?

The 600TB written endurance and 1,750,000-hour MTBF indicate a long service life; monitor the SMART percentage-used attribute and replace the drive once it approaches 100% or if reallocated sectors begin to rise.

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