Search  for anything...
Amazon Basics

Amazon Basics Micro SDXC Memory Card with Full Size Adapter, A2, U3, Read Speed up to 100 MB/s, 256 GB, Black

  • Based on 118,213 reviews
Condition: New
Checking for the best price...
$17.21 Why this price?
Labor Day Deal · 9% off was $18.88

Buy Now, Pay Later

As low as $4 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, Sep 2
Order within 3 hours and 31 minutes
Available payment plans shown during checkout

Recently Viewed

Style: 256GB


Features

  • WIDE COMPATIBILITY: Compatible with smartphones, tablets, cameras, GoPro/action cameras, laptops, desktop computers, DSLRs, drones, Nintendo Switch/other portable consoles and much more. Includes SD adapter. Note: Please refer to compatible devices list (keep update) in below Product guides for more detail. This Micro SD card is not compatible with the Nintendo Switch 2
  • HIGH QUALITY STORAGE: Perfect for high resolution photos, for recording and storing Full HD/4K videos and any other data type
  • ULTRA FAST: Read speed up to 100MB/s. Write speed up to 90MB/s (varies according to memory size). UHS, U3, Class 10 and A2 speed classes for an optimal smartphone experience
  • LASTING RELIABILITY: Shockproof, IPX6 waterproof, temperature-proof (-10 to 80), X-Ray-proof and magnetic-proof
  • Note: Actual storage capacity shown by a device's OS may be less than the capacity indicated on the product label due to different measurement standards. The available storage capacity is higher than 232GB
  • Read and write speeds are based on internal tests conducted under controlled conditions. Actual speeds may vary depending on device used, interface, conditions of use, and other factors
  • Note: Please note that we are changing the product's printing and packaging; both 2 versions are the same. (Old version does not show the A2 logo, but its performance is A2 level.)
  • Note: Check whether your device is compatible with the MicroSD capacity, for example, if the device only supports a maximum capacity of 64GB, it may not recognize 128GB MicroSDs above

Description

An Amazon Brand. From the Manufacturer Amazon Basics

Flash Memory Type: Micro SDXC


Memory Storage Capacity: 256 GB


Compatible Devices: Tablet, Camera, Smartphone


Color: Black


Read Speed: ‎100 Megabytes Per Second


Warranty Type: ‎Limited


Write Speed: ‎90 MB per second


Hardware Interface: ‎microSDXC


Secure Digital Association Speed Class: ‎Class 10


Product Dimensions: ‎0.43"L x 0.59"W


UPC: ‎840095874038


Item model number: ‎LSMICRO256GU3


Item Weight: ‎0.032 ounces


Item Dimensions LxWxH: ‎0.43 x 0.59 x 0.1 inches


Country of Origin: ‎Taiwan


Date First Available: ‎August 10, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • impressed with their consistent performance
Style: 64GB(2 pack)
Why did you pick this product vs others?: After using the Amazon Basics 64GB MicroSDXC cards for my GoPro Hero 9 over the past three months, I've been thoroughly impressed with their consistent performance. The two-pack arrived in simple but secure packaging, and each card came with a full-size adapter that's proven handy when transferring files to my laptop. What first caught my attention was the A2 and U3 ratings, which promised fast app performance and 4K video capability - specs that initially made me skeptical given the affordable price. Recording 4K footage at 60fps has become my standard practice with these cards, and they've handled it without a single dropped frame or overheating warning. I regularly shoot hour-long sessions while snorkeling, and the cards maintain steady write speeds even when the camera gets warm in direct sunlight. The claimed 100MB/s read speed feels accurate when I'm transferring files to my computer - a 30GB dive session transfers in about 5 minutes, which is significantly faster than the generic cards I used previously. Memory quality: What surprised me most was how well these cards perform with the GoPro's advanced features. Timewarp videos, 240fps slow motion, and HERO mode photos all save instantly without any lag or buffering. I've filled these cards completely multiple times during road trips, and they've never corrupted files or failed to save important moments, which happened occasionally with my old cards. The included adapters work perfectly in my DSLR too, making them versatile for all my photography needs. Durability has been excellent despite heavy use in various environments. After being submerged in saltwater, exposed to desert heat, and frozen during winter hikes (accidentally left in my jacket pocket), both cards still function flawlessly. The black finish shows no signs of wear, and the locking mechanism on the adapters remains firm after dozens of swaps between devices. I appreciate that they maintain consistent performance even when nearly full - some cards slow down significantly when storage space gets low. Reliability: For the price of this two-pack, the value is outstanding. I've tested these side-by-side with name brand cards that cost twice as much, and the Amazon Basics cards match them in real-world performance. Having two identical cards means I always have a backup ready when one is transferring files, and the peace of mind knowing both are reliable is worth the purchase alone. They've become my default recommendation for fellow action camera enthusiasts. After recording over 500GB of footage across multiple adventures, I can confidently say these microSD cards outperform their price point. The combination of speed, reliability, and included adapters makes them ideal for anyone needing dependable storage for 4K video. They've handled everything from professional shoots to family vacations without fail, proving you don't need to spend a fortune for quality memory cards that keep up with demanding cameras. ... show more
Reviewed in the United States on June 30, 2025 by Customer Review
    • Easy to use
Style: 128GB
If you're in need of a **reliable, high-performance memory card** that delivers exceptional speed, storage capacity, and seamless compatibility across a variety of devices, look no further than the **Amazon Basics Micro SDXC Memory Card with Full Size Adapter**. This memory card is a **game-changer** for anyone who relies on fast and efficient data storage. Whether you're an **avid photographer**, a **content creator**, or simply someone who needs more space for your mobile device, this memory card will exceed your expectations and then some. ### **Incredible Speed & Performance:** The **A2 rating** and **U3 speed class** are immediately noticeable in the performance of this memory card. If you’re using it in your smartphone, tablet, or camera, you’ll experience **lightning-fast data transfer speeds** that make your workflow smoother than ever. With a **read speed of up to 100 MB/s**, loading apps, photos, videos, and games becomes **instantaneous**, dramatically reducing lag or buffering times. For anyone who works with **4K video**, **high-resolution photos**, or large game files, this card ensures that you’ll have no trouble capturing, storing, or accessing your data. Even running heavy-duty applications or games on your device feels responsive, as this card can handle the demand without breaking a sweat. This kind of speed is perfect for those who need quick, uninterrupted performance in demanding tasks. ### **A2 App Performance:** What sets this memory card apart is its **A2 app performance rating**. This means that not only does it handle large media files with ease, but it’s also capable of running and **launching apps directly from the card** with **outstanding efficiency**. If you're using your phone or tablet for gaming, productivity apps, or streaming media, you can rely on this card to keep up with all of your needs, making your device feel faster and more responsive. Apps and games load quicker, reducing waiting times and improving your overall user experience. ### **Unmatched Storage Capacity:** With a wide range of storage options, the **Amazon Basics Micro SDXC Memory Card** ensures that you have enough room for everything. Whether you’re **storing thousands of high-quality photos**, **hours of video**, or **gigabytes of music**, this card has you covered. The additional **full-size adapter** makes it easy to use the card with a wide array of devices, from **cameras** and **tablets** to **laptops** and **gaming consoles**, further enhancing its versatility. No more worrying about running out of space or transferring files from one device to another—this card lets you store everything you need in one compact, reliable place. ### **Durability & Reliability:** When it comes to memory cards, reliability is key, and Amazon Basics ensures that this card doesn’t disappoint. Built to withstand the rigors of everyday use, this card is **shockproof**, **waterproof**, **temperature proof**, and **X-ray proof**, making it ideal for anyone who uses their devices on the go or in extreme conditions. Whether you're **traveling**, **outdoor adventuring**, or simply need a card that will hold up over time, this memory card will continue to work flawlessly in all environments. The peace of mind knowing that your data is safe and protected is invaluable. I’ve used this card in various devices without any issues, and it has reliably handled everything I’ve thrown at it. From transferring important files to backing up photos and videos, this card has been consistently **trustworthy**. ### **Ease of Use:** The **full-size adapter** included with the microSD card makes it incredibly easy to use in devices with **full-size SD card slots**. It takes only seconds to insert the card into the adapter and use it in cameras, laptops, or other SD-compatible devices. Whether you're **backing up files**, **moving data**, or using it as a secondary storage option, the ease of use is one of the key features that makes this card stand out from the competition. Additionally, the **plug-and-play functionality** means you don’t have to install any complicated software or drivers—simply insert the card, and you’re good to go. It’s an intuitive, hassle-free experience that saves you time and frustration. ### **Exceptional Value for Money:** When it comes to memory cards, performance often comes with a hefty price tag. However, Amazon Basics offers this high-performance **Micro SDXC Memory Card** at an incredibly competitive price point. Considering the **speed**, **capacity**, and **durability** of the card, it delivers outstanding value for money. This is the type of product where you get way more than you pay for, offering **premium features** without the **premium price**. ### **Conclusion:** The **Amazon Basics Micro SDXC Memory Card with Full Size Adapter** is a **must-have accessory** for anyone who requires fast, reliable storage for their devices. With its **exceptional speed**, **high-capacity storage**, **A2 app performance**, and **durability**, it is an essential tool for photographers, content creators, gamers, and anyone who relies on mobile technology. It provides excellent value for money while offering peace of mind in terms of data protection and reliability. Whether you're using it for everyday use or high-demand tasks, this memory card delivers **flawless performance**, ensuring that your data is safe and easily accessible. Highly recommended for anyone in need of **superior storage at an unbeatable price**! ... show more
Reviewed in the United States on January 2, 2025 by Batman
    • Perfect for Nintendo Switch OLED
Style: 128GB
I picked this up specifically for my Nintendo Switch, and it’s worked flawlessly so far. The Switch recognized it instantly, formatting took just a few seconds, and I was able to start downloading games right away. Load times are just as fast as with the name-brand cards (like SanDisk), and I haven’t had a single issue with lag, crashes, or corrupted files. Games run smooth, updates download quickly, and I’ve had no trouble moving data around. 128GB gives me plenty of space for digital games, saves, and updates—I’ve already loaded a bunch of titles and still have room to spare. Plus, the price is way better than most other cards with the same specs. The full-size SD adapter is a nice bonus for transferring screenshots or footage to my computer if I ever want to. ... show more
Reviewed in the United States on June 27, 2025 by Collins
    • Great for Desktop File Storage & Transfers!
Style: 64GB(2 pack)
I’m using the Amazon Basics MicroSDXC UHS-I Class 10 (64GB, 2-pack) for desktop file storage and backups, and they work flawlessly. The included full-size SD adapters make it super convenient to plug into my desktop's SD card reader without needing an extra dongle or USB adapter. Read and write speeds are fast—perfect for transferring documents, photos, and even larger media files. I’ve used them for everything from everyday work backups to storing PowerPoint presentations and PDFs for travel, and they haven’t let me down. They mount instantly on my desktop, and I’ve had zero issues with data loss or corrupted files. Reliable, fast, and affordable—perfect for organizing digital clutter or transporting files between machines. Highly recommend for anyone needing a simple storage solution for desktop use! ... show more
Reviewed in the United States on June 21, 2025 by Daneshrad

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...