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Compare SANDISK Optimus GX PRO 850X 4TB vs ADATA SU655 960GB 3D

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  2. Solid State Drives
  3. SANDISK Optimus GX PRO 850X 4TB 🆚 ADATA SU655 960GB 3D
The main differences between SANDISK Optimus GX PRO 850X 4TB and ADATA SU655 960GB 3D are in Capacity, Interface, NVME and Form Factor.
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SANDISK Optimus GX PRO 850X 4TB NVMe PCIe Gen4 x4 M.2-2280 SDSP81400TAN-000E0
SANDISK Optimus GX PRO 850X 4TB
ADATA SU655 960GB 3D NAND 2.5 SATA III (ASU655SS-960GT-C)
ADATA SU655 960GB 3D
Prices
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In Stock
$1,329.99
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$1,329.99
In Stock
$1,329.99
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Brand
SanDisk
Brand
ADATA
Model
  • SDSP81400TAN-000E0
  • SDSP81400TAN
Model
ASU655SS-960GT-C
Release Date
📅 February 2026
Release Date
-
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
Price history
View Details ►
Price history
View Details ►
Price/GB
$0.33
Price/GB
-
GB/$1
3.01
GB/$1
-
Series
-
Series
Ultimate SU655
Capacity
4000 GB
Capacity
960 GB
Interface
PCIe Gen4 x4
Interface
SATA 6 Gb/s
NVME
Yes
NVME
No
Form Factor
M.2-2280
Form Factor
2.5"
-

Comparison and key differences summary

Reasons to buy the SANDISK Optimus GX PRO 850X 4TB:

  • More Capacity (+3040 GB available)
  • Newer interface (PCIe Gen4 x4)

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Reasons to buy the ADATA SU655 960GB 3D:

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