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Back up important data, since big cards still fail.

This guide is built from Amazon product listings and maker specs, not our own testing, so confirm compatibility, speed ratings and current price on each product page.

Prices are approximate and were shown on Amazon.com on November 1, 2026; check the current price.

Last updated: November 1, 2026.

Quick Picks

Product Type Best for
PNY 512GB PRO Elite microSDXC (A2, V30) microSD card (A2, V30) large capacity
Samsung PRO Plus 512GB microSDXC (Sonic edition) microSD card (up to 180MB/s) large capacity
GIGASTONE 512GB Micro SD (A2, V30) microSD card (A2, V30) large capacity
SanDisk 1TB Ultra microSD microSD card (up to 150MB/s read) large capacity
Samsung PRO Plus 1TB microSDXC (Sonic edition) microSD card (up to 180MB/s) large capacity
GIGASTONE 1TB Micro SD (4K Camera Pro) microSD card large capacity

Our Picks

1. PNY 512GB PRO Elite microSDXC (A2, V30)

A PNY 512GB PRO Elite microSDXC (A2, V30) (microsd card (a2, v30)), per the listing. It showed at about $90 on Amazon.com on November 1, 2026.

Good for: large capacity. Watch out: Check read speed claim.

Check on Amazon

2. Samsung PRO Plus 512GB microSDXC (Sonic edition)

A Samsung PRO Plus 512GB microSDXC (Sonic edition) (microsd card (up to 180mb/s)), per the listing. It showed at about $153 on Amazon.com on November 1, 2026.

Good for: large capacity. Watch out: Higher price.

Check on Amazon

3. GIGASTONE 512GB Micro SD (A2, V30)

A GIGASTONE 512GB Micro SD (A2, V30) (microsd card (a2, v30)), per the listing. It showed at about $150 on Amazon.com on November 1, 2026.

Good for: large capacity. Watch out: Lesser-known brand.

Check on Amazon

4. SanDisk 1TB Ultra microSD

A SanDisk 1TB Ultra microSD (microsd card (up to 150mb/s read)), per the listing. It showed at about $170 on Amazon.com on November 1, 2026.

Good for: large capacity. Watch out: Slower than Extreme.

Check on Amazon

5. Samsung PRO Plus 1TB microSDXC (Sonic edition)

A Samsung PRO Plus 1TB microSDXC (Sonic edition) (microsd card (up to 180mb/s)), per the listing. It showed at about $269 on Amazon.com on November 1, 2026.

Good for: large capacity. Watch out: High price.

Check on Amazon

6. GIGASTONE 1TB Micro SD (4K Camera Pro)

A GIGASTONE 1TB Micro SD (4K Camera Pro) (microsd card), per the listing. It showed at about $260 on Amazon.com on November 1, 2026.

Good for: large capacity. Watch out: High price, lesser-known brand.

Check on Amazon

How to Choose

Capacity

128GB to 256GB covers most uses. Check the maximum your device supports.

Speed rating

U3, V30 and A2 describe sustained video and app performance. Match them to your device.

Seller and fakes

Buy from a reputable seller to avoid counterfeit cards.

Frequently Asked Questions

Does a faster card help?

Only if your device can use the speed.

What is A2?

An app-performance rating useful for apps and games.

How do I spot fakes?

Buy from the official store or a trusted seller and test capacity.

Bottom Line

Larger cards cost more per gigabyte, so buy only the capacity you need.

More Storage Guides