SanDisk
SanDisk SDSQUAR-128G-GN6MN 128GB Ultra Micro SD Card
★★★★★
Reliable 128GB micro SD card with A1-rated app performance and read speeds up to 100MB/s for GoPro and mobile devices.
$16.59*
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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
Key Features
Bundle includes (1) SanDisk 128GB microSD card and (1) Everything But Stromboli (TM) Micro Card Reader
Compatible with GoPro HERO (2018), GoPro Hero 6, Fusion, Hero 5, Hero 4.
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
Model
SDSQUAR-128G-GN6MN
Capacity
128GB
Type
Micro SDXC
UHS Speed Class
U1
Speed Class
Class 10
Read Speed
Up to 100MB/s
App Performance
A1 Rated
Durability
Shockproof, temperature-proof, waterproof, X-ray-proof
Bundle Includes
128GB Micro SD Card, Micro Card Reader
Pros & Cons
👍 Pros
- 128GB capacity provides ample storage for high-resolution video and photos
- A1 app performance rating supports running apps directly from the card on Android
- Read speeds up to 100MB/s allow fast file transfers to a computer
- Shockproof, waterproof, temperature-proof, and X-ray-proof construction
- Bundle includes a micro card reader for convenient file access
👎 Cons
- UHS U1 speed class may not support the highest bitrate 4K recording modes on some devices
- Write speeds are not specified and are typically slower than the advertised read speed
- Class 10 minimum write speed of 10MB/s is modest compared to U3-rated alternatives
- No full-size SD adapter is mentioned in the bundle
Frequently Asked Questions
What is the maximum read speed of this SanDisk 128GB Ultra card?
The card offers read speeds up to 100MB/s, which is suitable for transferring photos and video files quickly to your computer.
Is this card compatible with devices other than GoPro cameras?
Yes, it is a standard micro SDXC card that works with smartphones, tablets, drones, and other devices that accept micro SD cards with SDXC support.
What does the A1 app performance rating mean on this card?
The A1 rating means the card meets minimum random read/write performance standards, making it suitable for running apps directly from the card on Android devices.
Does this bundle include an SD adapter for use in full-size SD card slots?
The bundle includes a micro card reader. Check the listing details to confirm whether a full-size SD adapter is also included.
How durable is this micro SD card?
SanDisk rates it as shockproof, temperature-proof, waterproof, and X-ray-proof, so it can withstand harsh conditions during travel or outdoor use.
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