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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

  • Total capacity1 TB
  • Sequential read speedUp to 7,300 MB/s
  • Sequential write speedUp to 6,300 MB/s
  • Interface typePCI-Express 4.0 x4
  • Form factorM.2 2280-D5-M
  • Product typeInternal Solid State Drive (SSD)

Capacity 1TB w/ Heatsink

  • 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.

How it compares

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

Price $217.99
Pricier than about 57% of the 1,994 comparable items (median $180.49).
Total capacity 1 TB
Typical for this category: the median of 1,368 items is 1 TB.
Sequential read speed Up to 7,300 MB/s
Higher than about 87% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $217.99 per TB
Pricier than about 64% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameSanDisk
Product lineOptimus GX PRO 850X
Model nameSDSP81100TAH-000E0
Total capacity1 TB
Product typeInternal Solid State Drive (SSD)
Performance
Sequential read speedUp to 7,300 MB/s
Sequential write speedUp to 6,300 MB/s
Random read (4K)Up to 800,000 IOPS
Random write (4K)Up to 1,100,000 IOPS
Storage
NAND flash type3D NAND TLC
Cache memoryNo DRAM (SLC)
Write endurance600 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: 7.2 W
Average Active Power Write: 6.2 W
Size & build
Form factorM.2 2280-D5-M
Heat sinkWith HeatSink
Overall height8.9 mm
Overall width23 mm
Product depth80 mm
Product weight24g
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

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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