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SanDisk 512GB_TF_Extreme_R3 Micro Extreme Memory Card for Samsung — main product image
SanDisk 512GB_TF_Extreme_R3 Micro Extreme Memory Card for Samsung
SanDisk 512GB_TF_Extreme_R3 Micro Extreme Memory Card for Samsung
SanDisk 512GB_TF_Extreme_R3 Micro Extreme Memory Card for Samsung
SanDisk 512GB_TF_Extreme_R3 Micro Extreme Memory Card for Samsung
SanDisk 512GB_TF_Extreme_R3 Micro Extreme Memory Card for Samsung
SanDisk

SanDisk 512GB_TF_Extreme_R3 Micro Extreme Memory Card for Samsung

★★★★★4.8 (25 reviews)
4k

Expand your Samsung Galaxy storage to 512GB with blazing 160MB/s read speeds and rugged all-weather durability.

$55.40*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The SanDisk 512GB Micro Extreme memory card delivers a substantial storage upgrade for Samsung Galaxy smartphones and other compatible devices. With read speeds up to 160MB/s and write speeds up to 90MB/s, it handles demanding tasks like 4K video recording, high-resolution photo bursts, and large app installations with confidence. The card carries UHS-I (U3), Speed Class 10, and V30 ratings, ensuring it meets the sustained write speed requirements for uninterrupted 4K UHD capture. Its A2 app performance certification means that apps stored and run from the card benefit from faster random read/write operations, reducing load times and improving responsiveness.

Built to withstand real-world conditions, the card is rated shockproof, temperature-proof, waterproof, and X-ray-proof — giving peace of mind whether you're shooting in rain, extreme heat, or passing through airport security. This particular bundle pairs the card with an Everything But Stromboli USB 3.0 card reader that accepts both full-size SD and micro (TF) cards, making it straightforward to offload files to a computer without hunting for an adapter. At 512GB, the card offers enough space for tens of thousands of photos or many hours of 4K footage before you need to manage storage.

Key Features

Bundle includes: (1) 512 GB Micro Extreme Memory Card and (1) Everything But Stromboli 3.0 SD and Micro (TF) Card Reader

Compatible with Samsung S20, S20+, S20 Ultra, S20 FE 5G Smart Phone

Rated A2 for app performance, UHS-1 (U3), Speed Class 10, V30 for Full HD and 4k video recording and playback

Transfer speeds of 160MB/s read and 90MB/s write speeds.

Shockproof, temperature-proof, waterproof, and X-ray-proof

Specifications

Brand
SanDisk
Capacity
512GB
Card Type
Micro SDXC (Extreme)
Read Speed
Up to 160MB/s
Write Speed
Up to 90MB/s
Speed Class
Class 10, U3, V30
App Performance
A2
Durability
Shockproof, temperature-proof, waterproof, X-ray-proof
Compatibility
Samsung Galaxy S20, S20+, S20 Ultra, S20 FE 5G
Bundle Includes
512GB Micro Extreme Card, Everything But Stromboli 3.0 SD/Micro Card Reader

Pros & Cons

👍 Pros

  • 512GB capacity provides ample room for large photo libraries, 4K video, and app storage
  • 160MB/s read and 90MB/s write speeds enable fast file transfers and smooth 4K recording
  • A2 app performance rating ensures responsive operation when running apps from the card
  • Shockproof, waterproof, temperature-proof, and X-ray-proof construction protects data in harsh conditions
  • Bundle includes a USB 3.0 card reader for convenient transfers to a computer

👎 Cons

  • Write speed of 90MB/s is noticeably slower than the read speed, which may affect burst photo capture
  • This is a third-party bundle — warranty support may differ from buying directly from SanDisk
  • The included card reader is from a third-party brand, not SanDisk, so build quality may vary
  • 512GB capacity is on the higher end price-wise, and the bundled reader adds cost versus buying the card alone

Frequently Asked Questions

This card is specifically marketed for the Samsung Galaxy S20, S20+, S20 Ultra, and S20 FE 5G, but it will work with any device that accepts a microSD card.
Yes, it carries a V30 speed class rating, which meets the minimum sustained write speed of 30MB/s required for 4K UHD video recording.
The A2 rating means the card meets minimum random read and write IOPS thresholds, allowing apps installed on the card to load and run more responsively compared to lower-rated cards.
The bundle includes one SanDisk 512GB Micro Extreme memory card and one Everything But Stromboli 3.0 SD and Micro (TF) card reader for easy file transfers to a computer.
It is rated shockproof, temperature-proof, waterproof, and X-ray-proof, so your data is protected against common environmental hazards.

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