Compare Solid State Drives

Compare SANDISK Optimus 5100 1TB vs Western Digital BLACK SN850X 4TB + Heatsink

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  2. Solid State Drives
  3. SANDISK Optimus 5100 1TB 🆚 Western Digital BLACK SN850X 4TB + Heatsink
SANDISK Optimus 5100 1TB and Western Digital BLACK SN850X 4TB + Heatsink are both solid state drives with the same Interface (PCIe Gen4 x4) and Form Factor (M.2-2280). The main differences are in Capacity.
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SANDISK Optimus 5100 1TB NVMe PCIe Gen4 x4 M.2-2280 SDSP51100TAN-000E0
SANDISK Optimus 5100 1TB
Western Digital BLACK SN850X 4TB + Heatsink NVMe Gen4 PCIe M.2 2280 Up to 7,300 MB/s WDS400T2XHE
Western Digital BLACK SN850X 4TB + Heatsink
Prices
(Change region)
In Stock
Free shipping
$296.93
Prices
(Change region)
In Stock
$649.99
Last updated 13 minutes ago.
In Stock
$649.99
In Stock
$649.99
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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
  • SDSP51100TAN-000E0
  • SDSP51100TAN
Model
  • WDS400T2XHE
  • WDS400T2XHE-00BCA0
  • WDBB9H0040BNC-WRSN
Release Date
📅 February 2026
Release Date
📅 July 2024
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
★★★★☆
(107 reviews)
Performance (Charts)
n/a
Performance (Charts)
25th / 1746
Effective Value
-
Effective Value
120th / 336
Price history
View Details ►
Price history
View Details ►
Price/GB
$0.30
Price/GB
$0.16
GB/$1
3.37
GB/$1
6.15
Series
-
Series
Black
Capacity
1000 GB
Capacity
4000 GB
Interface
PCIe Gen4 x4
Interface
PCIe Gen4 x4
NVME
Yes
NVME
Yes
Form Factor
M.2-2280
Form Factor
M.2-2280
Max Sequential Read
-
Max Sequential Read
Up to 7300 MB/s
Max Sequential Write
-
Max Sequential Write
Up to 6600 MB/s
MTBF
-
MTBF
1.75M Hours
-

Comparison and key differences summary

Reasons to buy the SANDISK Optimus 5100 1TB:

  • 54% cheaper, you can save $353.06
  • Newer Product, it was released around 19 months later

Buy now

Reasons to buy the Western Digital BLACK SN850X 4TB + Heatsink:

  • More Capacity (+3000 GB available)

Buy now

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