SANDISK WD Blue SN5100 2TB vs WD Blue SN550 2TB SSD Comparison

SANDISK WD Blue SN5100 2TB and WD Blue SN550 2TB are both solid state drives with the same Capacity (2000 GB), Form Factor (M.2-2280) and NAND Flash Type (3D NAND). The main differences are in Interface, Max Sequential Read, Max Sequential Write and MTBF.

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SANDISK WD Blue SN5100 2TB	WD Blue SN550 2TB
Prices (Change region) In Stock Free shipping $274.99 In Stock $279.00 Last updated 50 minutes ago. In Stock Free shipping $279.00 In Stock Free shipping $307.99 Show 1 more offers	Prices (Change region) Out of Stock Free shipping $165.99 Out of Stock $169.99 Out of Stock Free shipping $229.99 Out of Stock Free shipping $439.99 - Buy now Show 2 more offers
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Brand SANDISK	Brand Western Digital
Model WDS200T5B0E-00CPE0 WDS200T5B0E	Model WDS200T2B0C
Release Date 📅 August 2025	Release Date 📅 November 2020
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★★ (75 reviews) Add a product review
Price history View Details ►	Price history View Details ►
Price/GB $0.14	Price/GB $0.08
GB/$1 7.27	GB/$1 12.05
Series WD Blue	Series Blue SN550 NVMe
Capacity 2000 GB	Capacity 2000 GB
Interface PCIe Gen4 x4	Interface PCIe Gen3 x4
NVME Yes	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2280
NAND Flash Type 3D NAND	NAND Flash Type 3D NAND
Cache No DRAM (HMB)	Cache -
Max Sequential Read Up to 7100 MB/s	Max Sequential Read Up to 2600 MB/s
Max Sequential Write Up to 6700 MB/s	Max Sequential Write Up to 1800 MB/s
MTBF 1.75 Million hours	MTBF 1.7M hours