SanDisk
SanDisk SDSQUAR-256G-GN6MA 256GB Micro SDXC Ultra Memory Card
★★★★★
Expand Your Mobile Storage with SanDisk Ultra microSDThe SanDisk Ultra 256GB microSDXC card provides ample storage for your mobile devices. Designed for Android smartphones and tablets, it delivers fast transfer speeds and reliable performance for capturing and storing high-quality photos and Ful...
$30.04*
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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
Expand Your Mobile Storage with SanDisk Ultra microSD
The SanDisk Ultra 256GB microSDXC card provides ample storage for your mobile devices. Designed for Android smartphones and tablets, it delivers fast transfer speeds and reliable performance for capturing and storing high-quality photos and Full HD videos. Bundle includes a convenient card reader for easy file transfer.
- Capacity: 256GB
- Card Type: microSDXC
- Compatibility: Samsung Galaxy S10, S10+, S10e and other Android devices
- Read Speed: Up to 120MB/s
- Speed Class: Class 10, UHS-I (U1), A1
- Durability: Waterproof, temperature-proof, shockproof, X-ray-proof
- Bundle Includes: Everything But Stromboli 3.0 Card Reader
Key Features
Bundle includes (1) 256GB microSD card (1) Everything But Stromboli (TM) 3.0 Card Reader with slots for SD and Micro (TF) Cards
Compatible with Samsung Galaxy S10, S10+, S10e mobile phones - Ideal for Android-based smartphones and tablets
Read speeds up to 120mb/s; rated A1 for 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
Lightning fast 3.0 Card Reader allows you to quickly and easily transfer your pictures and videos from your card to your computer or tablet
Specifications
Memory Card Type
microSDXC
Capacity
256GB
Read Speed
Up to 120MB/s
App Performance Class
A1
UHS Speed Class
U1
Video Speed Class
Class 10 (for Full HD video)
Durability
Shockproof, Temperature-proof, Waterproof, X-ray-proof
Compatibility
Android-based smartphones and tablets (e.g., Samsung Galaxy S10, S10+, S10e)
Included Accessory
Everything But Stromboli (TM) 3.0 Card Reader
Pros & Cons
👍 Pros
- Provides a generous 256GB storage capacity, ideal for holding a large volume of apps, photos, and Full HD videos.
- Achieves read speeds up to 120MB/s, enabling quick transfer of files and smooth performance.
- Rated A1 for app performance, which helps launch and run apps more quickly on compatible Android devices.
- Boasts UHS Speed Class U1 and Speed Class 10 ratings, ensuring smooth Full HD video recording and playback.
- Constructed to be shockproof, temperature-proof, waterproof, and X-ray-proof, enhancing data security in diverse conditions.
- Includes an Everything But Stromboli 3.0 Card Reader for fast and easy data transfer to computers or tablets.
- Optimized for Android-based smartphones and tablets, including specific compatibility with Samsung Galaxy S10 series phones.
👎 Cons
- While read speeds are up to 120MB/s, write speeds are not specified, which could impact recording of very high-resolution video or continuous burst photography.
- The specific compatibility with Samsung Galaxy S10 series phones doesn't guarantee optimal performance across all Android devices.
- The included card reader requires a USB 3.0 port to achieve its "lightning fast" transfer speeds.
- The 256GB capacity, while ample for many, may eventually be filled by users who record extensive 4K video or high-resolution images.
- The A1 app performance rating is a baseline and may not offer the same speed as cards with A2 ratings for more demanding app usage.
Frequently Asked Questions
What is the storage capacity of this SanDisk microSD card?
This SanDisk Micro SDXC Ultra Memory Card offers a generous storage capacity of 256GB.
What are the read speeds of this memory card?
This memory card offers read speeds of up to 120MB/s, facilitating quick access to your files.
Is this card suitable for recording Full HD video?
Yes, it is rated UHS Speed Class U1 and Speed Class 10, ensuring reliable performance for Full HD video recording and playback.
What devices are specifically compatible with this memory card?
This card is ideal for Android-based smartphones and tablets, with specific compatibility mentioned for Samsung Galaxy S10, S10+, and S10e mobile phones.
Is the memory card durable against environmental factors?
Yes, the card is designed to be shockproof, temperature-proof, waterproof, and X-ray-proof, providing robust durability.
Does this bundle include anything else besides the memory card?
Yes, the bundle includes one 256GB microSD card and one Everything But Stromboli (TM) 3.0 Card Reader with slots for both SD and Micro (TF) Cards.
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