Compare Solid State Drives

Compare Western Digital WD_BLACK SN7100 4TB vs WD_BLACK SN8100 2TB

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  2. Solid State Drives
  3. Western Digital WD_BLACK SN7100 4TB 🆚 Western Digital WD_BLACK SN8100 2TB
Western Digital WD_BLACK SN7100 4TB and Western Digital WD_BLACK SN8100 2TB are both solid state drives with the same Form Factor (M.2-2280) and MTBF (1,750,000 hours). The main differences are in Capacity, Interface, Max Sequential Read and Max Sequential Write.
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Western Digital WD_BLACK SN7100 4TB NVMe Gen4 PCIe M.2 2280 WDS400T4X0E-00CJA0
Western Digital WD_BLACK SN7100 4TB
Western Digital WD_BLACK SN8100 2TB NVMe Gen 5 PCIe 5.0 x4 M.2 2280 WDS200T1X0M
Western Digital WD_BLACK SN8100 2TB
Prices
(Change region)
In Stock
$569.00
Last updated 35 minutes ago.
In Stock
Free shipping
$578.00
In Stock
$578.00
Show 3 more offers
Prices
(Change region)
Out of Stock
Free shipping
$411.80
In Stock
$439.00
Last updated 34 minutes ago.
In Stock
Free shipping
$449.99
Show 3 more offers
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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
Western Digital
Brand
Western Digital
Model
  • WDS400T4X0E-00CJA0
  • WDS400T4X0E
Model
  • WDS200T1X0M
  • WDS200T1X0M-00CMT0
Release Date
📅 December 2024
Release Date
📅 May 2025
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
Performance (Charts)
n/a
Performance (Charts)
3rd / 1746
Effective Value
-
Effective Value
6th / 336
Price history
View Details ►
Price history
View Details ►
Price/GB
$0.06
Price/GB
$0.11
GB/$1
16.67
GB/$1
9.16
Series
SN7100
Series
-
Capacity
4000 GB
Capacity
2000 GB
Interface
PCIe Gen4 x4
Interface
PCIe Gen5 x4
NVME
Yes
NVME
Yes
Form Factor
M.2-2280
Form Factor
M.2-2280
NAND Flash Type
TLC 3D NAND
NAND Flash Type
-
Max Sequential Read
Up to 7000 MB/s
Max Sequential Read
Up to 14900 MB/s
Max Sequential Write
Up to 6700 MB/s
Max Sequential Write
Up to 14000 MB/s
MTBF
1,750,000 hours
MTBF
1,750,000 Hours

Comparison and key differences summary

Reasons to buy the Western Digital WD_BLACK SN7100 4TB:

  • More Capacity (+2000 GB available)

Buy now

Reasons to buy the Western Digital WD_BLACK SN8100 2TB:

  • 28% cheaper, you can save $157.20
  • Newer interface (PCIe Gen5 x4)

Buy now

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