---
product_id: 77104410
title: "256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-256G-GN6MA"
brand: "sandisk"
price: "$85.36"
currency: USD
in_stock: true
reviews_count: 11
category: "Sandisk"
url: https://www.desertcart.us/products/77104410-256gb-extreme-microsdxc-uhs-i-memory-card-with-adapter-up
store_origin: US
region: United States of America
---

# 160MB/s read speed 256GB storage capacity Durable: water, shock, temp & x-ray proof 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-256G-GN6MA

**Brand:** sandisk
**Price:** $85.36
**Availability:** ✅ In Stock

## Summary

> 🚀 Store More, Shoot Faster, Stress Less!

## Quick Answers

- **What is this?** 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-256G-GN6MA by sandisk
- **How much does it cost?** $85.36 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/77104410-256gb-extreme-microsdxc-uhs-i-memory-card-with-adapter-up)

## Best For

- sandisk enthusiasts

## Why This Product

- Trusted sandisk brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rugged Reliability:** Built tough with temperature, water, shock, and x-ray proofing—perfect for on-the-go pros.
- • **App-Ready Performance:** A2-rated for lightning-fast app launches and smooth multitasking on your smartphone or tablet.
- • **Massive Storage Power:** 256GB capacity means thousands of photos and hours of Full HD or 4K footage at your fingertips.
- • **Blazing Fast Transfers:** Up to 160MB/s read speeds save you precious time moving 4K UHD videos and high-res photos.
- • **Seamless Compatibility & Convenience:** Includes adapter and supports Alexa ordering for effortless file management and instant upgrades.

## Overview

The SanDisk Extreme 256GB microSDXC UHS-I card delivers ultra-fast 160MB/s read and 90MB/s write speeds, optimized for 4K UHD video and high-res photography. Engineered for durability with water, shock, temperature, and x-ray resistance, it’s A2-rated for superior app performance. Ideal for smartphones, drones, and action cameras, this memory card ensures you never miss a moment while storing massive amounts of data securely.

## Description

With the SanDisk Extreme 256GB microSD UHS-I Memory Card get extreme speeds for fast transfer, app performance, and 4K UHD video. (2) Ideal for your Android smartphone, action cameras or drones, this high-performance microSD card handles 4K UHD video recording, Full HD video and high-resolution photos. The super-fast SanDisk Extreme microSDXC memory card reads up to 160MB/s and writes up to 90MB/s. Plus, it’s A2-rated, so you can get fast application performance for an exceptional smartphone experience. Not all devices support microSD memory card formats. Check with your device manufacturer for more details. For 128GB-400GB: Up to 160MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds. Up to 90MB/s write speeds. 1MB=1,000,000 bytes. (1) 1GB=1,000,000,000 bytes. Actual user storage less. (2) Compatible device required. Full HD (1920x1080) and 4K UHD (3840 x 2160) support may vary based upon host device, file attributes and other factors. (3) Download and installation required. (4) Card only. See SanDisk website for additional information and limitations. (5) UHS Speed Class 3 (U3) designates a performance option designed to support real-time video recording with UHS-enabled host devices. Video speed class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS-enabled host devices. (6) Registration required; terms and conditions apply. (7) For 64GB-400GB: A2 performance is 4000 read IOPS, 2000 write IOPS. Results may vary based on host device, app type and other factors. (8) Read only; Based on internal testing. Results may vary based on host device, file attributions and other factors.

Review: Great for Old Digital Camera – Just Know the Card Size Limit - I picked up this 64GB SD card for my Panasonic Lumix DMC-ZS6, and it’s been working flawlessly. Just a heads-up: this camera supports SD, SDHC, and SDXC cards, but it maxes out at 64GB, so don’t go buying one of those huge 256GB cards if you have an old camera. They probably won’t work. 👍 Pros: - Fits perfectly within the camera’s limit and needed the included SD adaptor. - Stores thousands of photos at 12MP resolution. - Can hold hours of 720p video, which is the camera’s top setting. - No setup needed, just plug it in and shoot. 👎 Cons: - Nothing really, exactly what I expected it to do If you’re using an older camera like the ZS6, this card hits the sweet spot. It’s affordable, works great, and gives you way more space than you probably need.
Review: Solid product - I have 4 of these and have been using them several years now without failure in my dash cams. They're solid.

## Features

- Up to 160MB/s read speeds to save time transferring high res images and 4K UHD videos; Requires compatible devices capable of reaching such speeds
- Up to 90MB/s write speeds for fast shooting; Requires compatible devices capable of reaching such speeds
- 4K UHD and Full HD Ready with UHS speed class 3 (U3) and video speed class 30 (V30)
- Rated A2 for faster loading and in app performance
- Built for and tested in harsh conditions: Temperature Proof, Water Proof, shock Proof and x ray Proof
- Get the SanDisk memory zone app for easy file management (available on Google Play)
- Order with your Alexa enabled device; Just ask 'Alexa, order SanDisk microSD'

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FCR3316 |
| Best Sellers Rank | #34 in Micro SD Memory Cards |
| Color | Brown, Red |
| Customer Reviews | 4.8 4.8 out of 5 stars (354,236) |
| Date First Available | July 13, 2018 |
| Global Trade Identification Number | 00619659169732 |
| Hardware Interface | microSDXC |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 0.04 x 0.59 x 0.43 inches |
| Item Weight | 0.16 ounces |
| Item model number | SDSQXA1-256G-GN6MA |
| Manufacturer | Western Digital Technologies Inc. |
| Product Dimensions | 0.04"L x 0.59"W |
| RAM | 256 GB |
| Read Speed | 160 Megabytes Per Second |
| Special Feature | Drop Proof, Temperature Proof, Water Proof, X Ray Proof |
| UPC | 619659169732 |
| Warranty Type | Lifetime |
| Write Speed | 90 mbs |

## Product Details

- **Brand:** Sandisk
- **Compatible Devices:** Camera, Smartphone
- **Flash Memory Type:** Micro SD, Micro SDXC
- **Memory Storage Capacity:** 256 GB
- **Model Name:** Extreme

## Images

![256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-256G-GN6MA - Image 1](https://m.media-amazon.com/images/I/91fje5JSnPL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: What's the difference A1 A2 ?**
A: A1 read speed is up to 100mb/s while A2 is at up to 160mb/s, write speed for both is at 90mb/s. A2 is also optimized for cell phone applications.

**Q: Is this product counterfeit? if i order and try to register it on sandisk’s website for use with recoverypro, will it be accepted?**
A: Your concerns are valid in light of the fact that on a popular product bidding site (rhymes with "flea") it was once estimated that 95% of all memory offered on the site were counterfeits. Amazon is not off the hook either. I have seen sellers posting memory at ridiculous prices, such as a 1TB unknown-brand microSD card for $50. 

Assuming you are not able to perform card tests, here's how I buy memory:

- I buy ONLY FROM ESTABLISHED sellers (defined as a seller who specializes only in card products, has hundreds of five star ratings, has a history of good comments and reviews, and has a no-questions-asked return policy).

- I now buy ONLY the brand names. Samsung, SanDisk, PNY, Kingston, etc. (stick to the brand names, that's half the battle won).

- When you get the card check closely for evidence of repackaging (soiled card, fingerprints or smudges, factory seal broken, etc.) If you see such evidence, send the card back.

- Assuming you know how to check the card "properties" on your computer or phone, so that. Counterfeiters can fool this system, but it is better than nothing. 

- Finally, perform a few tests: 1) transfer files TO the card, that's testing the write speed. Windows will show you the transfer/write rate. Assuming there's no bottlenecks in your card reader or on the PC, you should see transfer speeds close to what's claimed on the package and website ad; and 2) transfer files from the card to the PC. See how fast a transfer or "upload" takes. 

- Finally, use a FREE (German) program called "h2testw" that works on MS Windows (has an English language option when you open it). That will test all elements of your card. Pop the card into the reader, connected to your PC, open h2testw and test away.

**Q: Can this handle 60 fps 4k?**
A: Yes, It does 4K 60fps with no issues. I use it in my GoPro Hero 6 and have never had issues. Also works great for 2.7K 120fps.

**Q: Does the 1tb card work on Nintendo Switch?**
A: Yes, the 1TB SanDisk "Extreme" card works on the Switch. All sizes and speeds of MicroSD, up to 2TB (whenever those get made), will work. Nintendo recommends a speed of at least Class 10 and UHS-I, though.

That being said, the Switch's MicroSD card reader can only read at speeds up to 104MB/s. The "Extreme" and "Extreme Pro" cards are rated up to 160MB/s and 170MB/s, respectively. The Switch also cannot take advantage of the "A2" and "V30" specs, so buying the *fastest* card isn't necessarily the best option. 

The cheaper SanDisk "Ultra" cards (rated up to 120MB/s) will work perfectly fine, leave enough comfortable overhead for the speed, and save you money.

Other reputable MicroSD card brands are: Kingston, Lexar, PNY, and Samsung.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for Old Digital Camera – Just Know the Card Size Limit
*by N***G on January 11, 2026*

I picked up this 64GB SD card for my Panasonic Lumix DMC-ZS6, and it’s been working flawlessly. Just a heads-up: this camera supports SD, SDHC, and SDXC cards, but it maxes out at 64GB, so don’t go buying one of those huge 256GB cards if you have an old camera. They probably won’t work. 👍 Pros: - Fits perfectly within the camera’s limit and needed the included SD adaptor. - Stores thousands of photos at 12MP resolution. - Can hold hours of 720p video, which is the camera’s top setting. - No setup needed, just plug it in and shoot. 👎 Cons: - Nothing really, exactly what I expected it to do If you’re using an older camera like the ZS6, this card hits the sweet spot. It’s affordable, works great, and gives you way more space than you probably need.

### ⭐⭐⭐⭐⭐ Solid product
*by M***A on January 17, 2026*

I have 4 of these and have been using them several years now without failure in my dash cams. They're solid.

### ⭐⭐⭐⭐⭐ Fast, Reliable, and Perfect for Raspberry Pi 4
*by R***R on February 14, 2026*

This microSD card has been perfect for my Raspberry Pi 4. The speed is excellent — everything runs smoothly and responsively. I installed Kali Linux ARM on it and still have more than enough room for the additional tools I plan to add. The price was great for the performance and storage capacity, and the quality is exactly what I expect from SanDisk. It arrived very well protected in the packaging while still being easy to access. Fast, reliable, and high quality — definitely a five-star purchase.

## Frequently Bought Together

- SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-256G-GN6MA
- uni SD Card Reader, High-Speed USB C to Micro SD Card Adapter USB 3.0 Dual Slots, Memory Card Reader for SD/Micro SD/SDHC/SDXC/MMC, Compatible with MacBook Pro/Air, Chromebook, Android Galaxy
- SanDisk 256GB Extreme PRO SDXC UHS-I Memory Card - C10, U3, V30, 4K UHD, SD Card - SDSDXXD-256G-GN4IN, Dark gray/Black

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-12*