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Compare SANDISK Optimus GX PRO 850X 1TB vs WD Red SA500 NAS 2TB

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  2. Solid State Drives
  3. SANDISK Optimus GX PRO 850X 1TB 🆚 WD Red SA500 NAS 2TB
The main differences between SANDISK Optimus GX PRO 850X 1TB and WD Red SA500 NAS 2TB are in Capacity, Interface, NVME and Form Factor.
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SANDISK Optimus GX PRO 850X 1TB NVMe PCIe Gen4 x4 M.2-2280 SDSP81100TAN-000E0
SANDISK Optimus GX PRO 850X 1TB
WD Red SA500 NAS 2TB 3D NAND SATA III 6 GB/S 2.5" WDS200T1R0A
WD Red SA500 NAS 2TB
Prices
(Change region)
In Stock
$329.99
In Stock
Free shipping
$329.99
In Stock
Free shipping
$329.99
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Prices
(Change region)
In Stock
Free shipping
$399.14
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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
Western Digital
Model
  • SDSP81100TAN-000E0
  • SDSP81100TAN
Model
WDS200T1R0A
Release Date
📅 February 2026
Release Date
📅 October 2019
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
★★★★★
(13 reviews)
Price history
View Details ►
Price history
View Details ►
Price/GB
$0.33
Price/GB
$0.08
GB/$1
3.03
GB/$1
12.9
Series
-
Series
Red SA500
Capacity
1000 GB
Capacity
2000 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 NAND
Max Sequential Read
-
Max Sequential Read
Up to 560 MB/s
Max Sequential Write
-
Max Sequential Write
Up to 530 MB/s
MTBF
-
MTBF
Up to 2M hours
-
WD Red SA500 NAS 500GB 500GB
$49.99
WD Red SA500 4TB 4TB
$845.49
WD Red SA500 NAS 1TB 1TB
$458.05

Comparison and key differences summary

Reasons to buy the SANDISK Optimus GX PRO 850X 1TB:

  • 17% cheaper, you can save $69.15
  • Newer Product, it was released around 6 years later
  • Newer interface (PCIe Gen4 x4)

Buy now

Reasons to buy the WD Red SA500 NAS 2TB:

  • More Capacity (+1000 GB available)

Buy now

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