SanDisk 512GB microSD Express Card

Specifications

Capacity

512GB

Interface

microSD Express

Form Factor

microSD

Read Speed

800 MB/s

Endurance

—

Warranty

10 years

Brand

SanDisk

Price / TB

$253.89/TB

Value Score Breakdown

Our Verdict

SanDisk's 512GB microSD Express matches the Samsung P9 Express above on format, capacity, and rated 800MB/s speed, but undercuts it by $20 at $129.99 — making this the better default pick of the two unless a specific brand preference applies. Like the Samsung card, its full speed is only realized in microSD Express-capable devices (the Nintendo Switch 2 being the main consumer use case today); dropped into an older UHS-I card reader, it performs like a standard high-end card rather than delivering its rated bandwidth. With 2,203 reviews at 4.7 stars and SanDisk's standard 10-year warranty, it's the more trusted and slightly cheaper of the two Express-format options in this catalog. For Switch 2 owners or early adopters of Express-compatible devices, this is the card to buy over the Samsung equivalent.