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SanDisk 128G_TF_Ultra_R4BKEBS 128GB Micro SD Card — main product image
SanDisk 128G_TF_Ultra_R4BKEBS 128GB Micro SD Card
SanDisk 128G_TF_Ultra_R4BKEBS 128GB Micro SD Card
SanDisk 128G_TF_Ultra_R4BKEBS 128GB Micro SD Card
SanDisk 128G_TF_Ultra_R4BKEBS 128GB Micro SD Card
SanDisk 128G_TF_Ultra_R4BKEBS 128GB Micro SD Card
SanDisk 128G_TF_Ultra_R4BKEBS 128GB Micro SD Card
SanDisk

SanDisk 128G_TF_Ultra_R4BKEBS 128GB Micro SD Card

★★★★★4.6 (924 reviews)

The SanDisk 128GB Ultra MicroSD card delivers fast 100MB/s read speeds and A1-rated app performance for Android devices.

$21.08*
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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 128GB Ultra MicroSDXC card is designed to give Android smartphone and tablet users a straightforward way to expand their device storage. With 128GB of capacity, it provides plenty of room for photos, videos, music, and apps without constantly managing free space. The card's UHS-I Class 10 and U1 ratings ensure it can handle Full HD video recording and playback reliably, while read speeds of up to 100MB/s make transferring large files to a computer or other device reasonably quick.

The A1 app performance rating is a practical feature for users who install apps on their microSD card, as it ensures the card meets minimum random read and write benchmarks for smoother app launches and operation. Built-in durability features — including resistance to shock, temperature extremes, water, and X-rays — add peace of mind for everyday carry and travel. The inclusion of an Everything But Stromboli card reader in the bundle is a useful touch for anyone who needs to move files between their microSD card and a computer without hunting for an adapter.

Key Features

Bundle includes (1) SanDisk 128GB microSD card and (1) Everything But Stromboli (TM) Micro Card Reader

Compatible with the Samsung Galaxy S9, S9 Plus Smartphones

Read speeds up to 100mb/s; rated A1 for faster app performance and UHS Speed Class U1 and Speed Class 10 for Full HD video recording and playback

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

Ideal for Android-based tablets and smartphones for more expandable storage

Specifications

Brand
SanDisk
Capacity
128GB
Type
MicroSDXC
UHS Class
UHS-I, Class 10
Speed Class
U1
Read Speed
Up to 100MB/s
App Performance
A1 Rated
Video Recording
Full HD
Durability
Shockproof, temperature-proof, waterproof, X-ray-proof
Included Accessories
Everything But Stromboli Card Reader

Pros & Cons

👍 Pros

  • Fast 100MB/s read speeds enable quick file transfers and smooth media access
  • A1 rating supports faster app performance when running apps from the card
  • Durable construction withstands shocks, extreme temperatures, water, and X-rays
  • Bundled card reader adds convenience for transferring files to a computer
  • 128GB capacity provides ample space for apps, photos, videos, and music

👎 Cons

  • Write speeds are not specified and are typically slower than the advertised read speeds
  • Not rated for 4K video recording, limited to Full HD at the U1 speed class
  • The bundled card reader is a basic third-party accessory rather than a SanDisk product
  • No full-size SD adapter included for use in cameras or laptops with SD card slots

Frequently Asked Questions

This card supports read speeds up to 100MB/s, which allows for quick file transfers and smooth media playback.
Yes, it carries UHS Speed Class U1 and Speed Class 10 ratings, which support Full HD (1080p) video recording and playback.
The A1 (App Performance Class 1) rating means the card meets minimum random read/write speeds for running apps directly from the card, resulting in faster app loading on compatible Android devices.
Yes, this bundle includes an Everything But Stromboli (TM) Micro Card Reader alongside the 128GB microSD card.
The SanDisk Ultra is built to be shockproof, temperature-proof, waterproof, and X-ray-proof, offering protection against common environmental hazards.

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