SANDISK Optimus 5100 1TB vs Western Digital WD_BLACK SN7100 1TB SSD Comparison

SANDISK Optimus 5100 1TB and Western Digital WD_BLACK SN7100 1TB are both solid state drives with the same Capacity (1000 GB), Interface (PCIe Gen4 x4) and Form Factor (M.2-2280). The main differences are in NAND Flash Type, Max Sequential Read and Max Sequential Write.

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SANDISK Optimus 5100 1TB	Western Digital WD_BLACK SN7100 1TB
Prices (Change region) In Stock $199.99 In Stock Free shipping $199.99 In Stock $242.56 Out of Stock Free shipping $253.13 Show 1 more offers	Prices (Change region) In Stock Free shipping $188.98 In Stock $189.00 Last updated 43 minutes ago. In Stock Free shipping $189.99
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Brand SanDisk	Brand Western Digital
Model SDSP51100TAN-000E0 SDSP51100TAN	Model WDS100T4X0E-00CJA0 WDS100T4X0E
Release Date 📅 February 2026	Release Date 📅 December 2024
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★★ (2 reviews) Add a product review
Price history View Details ►	Price history View Details ►
Price/GB $0.20	Price/GB $0.19
GB/$1 5	GB/$1 5.29
Series Optimus 5100	Series SN7100
Capacity 1000 GB	Capacity 1000 GB
Interface PCIe Gen4 x4	Interface PCIe Gen4 x4
NVME Yes	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2280
NAND Flash Type QLC 3D CBA NAND	NAND Flash Type TLC 3D NAND
Max Sequential Read Up to 7100 MB/s	Max Sequential Read Up to 7250 MB/s
Max Sequential Write Up to 6700 MB/s	Max Sequential Write Up to 6900 MB/s
MTBF 1,750,000 hours	MTBF 1,750,000 hours