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Compare SANDISK Optimus GX PRO 850X 8TB Heatsink vs Ultra II 240GB

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  3. SANDISK Optimus GX PRO 850X 8TB Heatsink 🆚 SanDisk Ultra II 240GB
The main differences between SANDISK Optimus GX PRO 850X 8TB Heatsink and SanDisk Ultra II 240GB are in Capacity, Interface, NVME and Form Factor.
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SANDISK Optimus GX PRO 850X 8TB NVMe Heatsink PCIe Gen4 x4 M.2-2280 SDSP81800TAH-000E0
SANDISK Optimus GX PRO 850X 8TB Heatsink
SanDisk Ultra II 240GB 2.5" SATA 3 SDSSDHII-240G-G25
SanDisk Ultra II 240GB
Prices
(Change region)
In Stock
Free shipping
$2,699.99
Prices
(Change region)
Out of Stock
Free shipping
$392.00
-
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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
SanDisk
Model
  • SDSP81800TAH-000E0
  • SDSP81800TAH
Model
SDSSDHII-240G-G25
Release Date
📅 February 2026
Release Date
📅 September 2014
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
★★★★★
(108 reviews)
Performance (Charts)
n/a
Performance (Charts)
302nd / 1746
Effective Value
-
Effective Value
323rd / 336
Price history
View Details ►
Price history
View Details ►
Price/GB
$0.34
Price/GB
$1.63
GB/$1
2.96
GB/$1
0.61
Series
-
Series
Ultra II
Capacity
8000 GB
Capacity
240 GB
Interface
PCIe Gen4 x4
Interface
SATA 6 Gb/s
NVME
Yes
NVME
No
Form Factor
M.2-2280
Form Factor
2.5"
SSD Controller
-
SSD Controller
Marvell 9187
NAND Flash Type
-
NAND Flash Type
TLC (toggle)
Max Sequential Read
-
Max Sequential Read
Up to 550 MB/s
Max Sequential Write
-
Max Sequential Write
Up to 500 MB/s
MTBF
-
MTBF
1,750,000 hours
-

Comparison and key differences summary

Reasons to buy the SANDISK Optimus GX PRO 850X 8TB Heatsink:

  • Newer Product, it was released around 12 years later
  • More Capacity (+7760 GB available)
  • Newer interface (PCIe Gen4 x4)

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Reasons to buy the SanDisk Ultra II 240GB:

  • 85% cheaper, you can save $2,307.99

Buy now

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