SanDisk 128G Micro SD Card with Card Reader — main product image

SanDisk 128G Micro SD Card with Card Reader

SanDisk

SanDisk 128G Micro SD Card with Card Reader

Name: SanDisk 128G Micro SD Card with Card Reader
Brand: SanDisk
SKU: 128G_TF_Ultra_R4BLK

★★★★★4.5 (194 reviews)

SanDisk 128GB Ultra microSDXC card with A1 app performance rating, 100MB/s reads, and an included card reader for instant use.

$17.24*

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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The SanDisk 128GB Ultra microSDXC UHS-I card is built for users who need reliable, high-capacity mobile storage with fast performance. With read speeds up to 100MB/s and a Class 10 / U1 speed rating, it handles Full HD video recording, photo storage, and general file transfers with ease. The A1 app performance rating sets it apart from basic storage cards by ensuring minimum random read and write speeds that allow apps installed on the card to load and run more responsively — a practical benefit for Android users who move apps to external storage to free up internal memory.

This particular bundle includes a card reader, making it ready for immediate file transfers between your mobile device and computer without requiring additional accessories. The card itself is engineered for durability, with shockproof, temperature-proof, waterproof, and X-ray proof ratings that protect stored data in demanding conditions. At 128GB, it provides ample room for thousands of photos, hours of Full HD video, music libraries, and apps. While it excels for everyday mobile storage and Full HD content, users who need sustained high-speed writes for 4K video or professional burst photography should consider cards with UHS Speed Class 3 or V30 ratings.

Specifications

Brand

SanDisk

Capacity

128GB

Card Type

microSDXC UHS-I

Speed Class

Class 10, UHS Speed Class U1

App Performance

A1 rated

Read Speed

Up to 100MB/s

Compatibility

SDXC-compliant devices

Durability

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

Included Accessories

Card reader

Pros & Cons

👍 Pros

A1 app performance rating enables smoother app loading and operation when running apps from the card.
100MB/s read speed provides noticeably faster file transfers than older 80MB/s UHS-I cards.
128GB capacity offers substantial room for apps, photos, Full HD video, and music libraries.
Included card reader eliminates the need for a separate purchase to transfer files to a computer.
Shockproof, waterproof, temperature-proof, and X-ray proof construction protects data across conditions.

👎 Cons

Class 10 / U1 speed class is not rated for sustained 4K video recording — users needing U3 should choose a higher-tier card.
Write speed is not specified and will be considerably slower than the 100MB/s read speed.
The included card reader quality may not match dedicated branded readers in speed or build.
128GB may be insufficient for users who store large volumes of 4K footage or extensive game libraries.
No full-size SD adapter is mentioned, which some cameras and laptops require for direct insertion.

Frequently Asked Questions

What does the A1 rating on this card mean?

The A1 (App Performance Class 1) rating means the card meets minimum random read/write speed thresholds for running apps directly from the card, so apps load and perform more smoothly compared to non-A1 rated cards.

What read speed does this card achieve?

It delivers read speeds up to 100MB/s, which allows fast file transfers and smooth playback of stored media.

Is a card reader included with this purchase?

Yes, this bundle includes a card reader so you can transfer files to a computer immediately without needing a separate accessory.

Can I use this card in a camera or dashcam?

Yes, it works in any device that supports microSDXC cards with SDXC compliance, including cameras, dashcams, drones, and gaming handhelds.

How durable is this card against physical hazards?

It is rated shockproof, temperature-proof, waterproof, and X-ray proof, protecting your data from common environmental risks like airport scanners and extreme weather.