SANDISK Optimus GX PRO 850X

4000 GB, M.2 2280
CHF419.75/1TB
Delivered between Tue, 29.9. and Wed, 14.10.
free shipping

Memory Size3

Storage Cooling2

Product details

The SanDisk SSD Optimus GX Pro 850X is a powerful M.2 NVMe SSD with a storage capacity of 4 TB, designed for use in PCs and laptops. It offers impressive read and write speeds of up to 7300 MB/s and 6600 MB/s, making it ideal for demanding applications and multitasking. With a high IOPS performance of up to 1,200,000 for read operations and 1,100,000 for write operations, this SSD ensures fast data processing and transfer. The compact M.2 2280 form factor allows for easy integration into modern systems, while the robust construction and high MTBF of 1,750,000 hours provide reliability and durability. The SSD also comes with Acronis True Image, which facilitates data backup and migration.

  • Maximum TBW of 2400 terabytes for long-term use
  • Low power consumption of only 8 watts during operation
  • MTBF of 1,750,000 hours for increased reliability
  • Includes Acronis True Image for easy data backup
  • Optimized for high IOPS performance in random read and write operations.

Key specifications

Interface
PCIe
Interface version
PCIe 4.0
Protocol
NVMe
Read transfer speed
7300 MB/s
Write transfer speed
6600 MB/s
Max. random 4K read
1200000 IOPS
Max. random 4K write
1100000 IOPS

General information

Item number
66957408
Manufacturer
SANDISK
Category
SSD
Manufacturer No.
SDSP81400TAN-000E0
Release date
22.1.2026

Data storage properties

SSD type
M.2 SSD
Form factor
M.2 2280
Storage capacity
4000 GB
Interface
PCIe
Interface version
PCIe 4.0
Protocol
NVMe
Read transfer speed
7300 MB/s
Write transfer speed
6600 MB/s
Memory type (NAND)
TLC
Max. random 4K read
1200000 IOPS
Max. random 4K write
1100000 IOPS
Storage Cooling
without heatsink
Scope of application
Gaming
SSD Features
TCG Opal
Max. TBW
2400 TB
MTBF
1750000 h

Power

Power consumption
8 W

Origin

Country of origin
China

Sustainability

Manufacturer commitment
SBTi

Voluntary climate contribution

CO₂ emissions
95.84 kg
Climate contribution
CHF 2.28

Product dimensions

Length
8 cm
Width
2.20 cm
Height
0.39 cm
Weight
8.60 g

30-day right of return
36 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «SSD» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 4.HP
    0.5 %
  • 4.MSI
    0.5 %
  • 4.SANDISK
    0.5 %
  • 7.Crucial
    0.6 %
  • 7.Emtec
    0.6 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 12.Corsair
    3 days
  • 12.Lexar
    3 days
  • 12.Patriot
    3 days
  • 12.SANDISK
    3 days
  • 16.Seagate
    4 days

Return rate

How often is a product of this brand in the «SSD» category returned?

Source: Digitec Galaxus
  • 12.WD
    2.4 %
  • 14.Crucial
    2.6 %
  • 15.SANDISK
    3 %
  • 15.Seagate
    3 %
  • 17.Verbatim
    3.1 %
Source: Digitec Galaxus