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Compare SANDISK Optimus GX PRO 850X 4TB vs PNY XLR8 CS2311 1TB

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  2. Solid State Drives
  3. SANDISK Optimus GX PRO 850X 4TB 🆚 PNY XLR8 CS2311 1TB
The main differences between SANDISK Optimus GX PRO 850X 4TB and PNY XLR8 CS2311 1TB 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
PNY XLR8 CS2311 1TB 2.5" SATA III
PNY XLR8 CS2311 1TB
Prices
(Change region)
In Stock
$1,329.99
In Stock
Free shipping
$1,329.99
In Stock
$1,329.99
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Prices
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* Product prices and availability are subject to change frequently. Any price and availability information displayed on Amazon at the time of purchase will apply.
Brand
SanDisk
Brand
PNY
Model
  • SDSP81400TAN-000E0
  • SDSP81400TAN
Model
SSD7CS2311-1TB-RB
Release Date
📅 February 2026
Release Date
📅 May 2019
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
★★★★★
(1 reviews)
Price history
View Details ►
Price history
View Details ►
Price/GB
$0.33
Price/GB
-
GB/$1
3.01
GB/$1
-
Series
-
Series
XLR8 CS2311
Capacity
4000 GB
Capacity
1000 GB
Interface
PCIe Gen4 x4
Interface
SATA 6 Gb/s
NVME
Yes
NVME
No
Form Factor
M.2-2280
Form Factor
2.5"
NAND Flash Type
-
NAND Flash Type
3D TLC
Max Sequential Read
-
Max Sequential Read
Up to 560 MB/s
Max Sequential Write
-
Max Sequential Write
Up to 530 MB/s
MTBF
-
MTBF
2,000,000 hours
-

Comparison and key differences summary

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

  • Newer Product, it was released around 7 years later
  • More Capacity (+3000 GB available)
  • Newer interface (PCIe Gen4 x4)

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Reasons to buy the PNY XLR8 CS2311 1TB:

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