Amazon Basics microSDXC Memory Card with Full Size Adapter, A2, U3, Read Speed up to 100 MB/s, 128GB, Black
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This item is eligible for return within 30 days of receipt
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Availability:
Only 3 left in stock, order soon!
Arrives
Sunday, Jul 26
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Style: 128GB
Capacity: 128 GB
Features
- Compatible with Nintendo Switch (NOT Nintendo Switch 2). Always check your device's max supported capacity.
- Reliable Real-World Capacity - Labeled Capacities/Usable Capacities: 64GB/≥58GB; 128GB/≥116GB; 256GB/≥232GB; 512GB/≥465GB; 1TB/≥908GB (Due to OS formatting and binary/decimal calculation differences)
- 4K & Full HD Ready — Optimized for high-bitrate video recording and burst-mode photography. Handles RAW files, time-lapse sequences, and smooth 4K UHD playback without lag or frame drops.
- UHS-I U3 + A2 Certified Speed — Up to 100MB/s read speed (lab-tested); meets Video Speed Class V30 and Application Class A2 for fast app loading, responsive multitasking, and reliable performance on Android devices.
- Built for Adventure — Shock-resistant, IPX6 water-resistant, and rated for extreme temperatures (−10°C to +80°C). Also resistant to X-rays and magnetic fields — ideal for travel, outdoor use, and dashcams.
Description
An Amazon Brand. Amazon Basics
Flash Memory Type: Micro SDXC
Memory Storage Capacity: 128 GB
Compatible Devices: Camera, Drone, Laptop, Smartphone, Tablet
Additional Features: Magnetic Proof
Read Speed: 100 Megabytes Per Second
Media Speed: 60 MB per second
Hardware Connectivity: microSDXC
Secure Digital Association Speed Class: Class 10
Item Weight: 8.02 Grams
Item Dimensions L x W: 1.69"L x 0.3"W
Item Dimensions D x W x H: 0.04"D x 0.59"W x 0.43"H
Warranty Type: Limited
Brand: Amazon Basics
Model Name: LSMICRO128GU3
Model Number: LSMICRO128GU3
Manufacturer: Amazon
UPC: 840095874021
Mfr Part Number: LSMICRO128GU3
Unit Count: 1.0 Count
Warranty Description: 12 months
Best Sellers Rank: #106 in Our Brands (See Top 100 in Our Brands) #2 in Micro SD Memory Cards
ASIN: B08TJRVWV1
Customer Reviews: 4.7 4.7 out of 5 stars (152,920) 4.7 out of 5 stars
Color: Black
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Jul 26
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: 256GB
Capacity: 256 GB
I purchased this memory card for extra storage, and it's worked exactly as I hoped. It was easy to install, was recognized by my device right away, and has performed reliably for storing photos, videos, and other files. The included full-size SD adapter is a nice bonus and makes it easy to use with different devices. If you're looking for a dependable memory card at a reasonable price, this one has been a great value for my needs.
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Reviewed in the United States on June 28, 2026 by Jo Consumer
Style: 128GB
Capacity: 128 GB
In the ever-growing world of digital storage, finding a memory card that balances performance, reliability, and affordability can be a challenge. The Amazon Basics 128GB Micro SDXC Memory Card with Full Size Adapter rises to this challenge, offering a solution that meets the needs of both casual users and tech enthusiasts alike. Impressive Speed and Performance Equipped with a Class 10 UHS-I U3 speed rating, this memory card delivers fast read and write speeds, making it ideal for a variety of applications. Whether you're capturing high-resolution photos, recording 4K Ultra HD videos, or running apps directly from the card on your smartphone or tablet, the card handles tasks smoothly without lag. In my tests, it consistently achieved read speeds of up to 100 MB/s and write speeds close to 60 MB/s, rivaling more expensive brands in the market. Versatility with Full-Size Adapter The inclusion of a full-size SD adapter adds a layer of versatility that's highly appreciated. This feature allows for seamless compatibility with a broader range of devices, such as DSLRs, camcorders, laptops, and even some gaming consoles. Transitioning files between devices is hassle-free, making it a convenient choice for photographers and videographers who switch between equipment frequently. Robust and Durable Design Durability is a critical factor for memory cards, especially for those who use them in demanding environments. The Amazon Basics memory card is built to withstand tough conditions—it is waterproof, shockproof, temperature-proof, and X-ray-proof. This ruggedness ensures that your valuable data remains safe during travel, outdoor adventures, or daily commuting. Ample Storage Capacity With 128GB of storage, this card provides ample space to store thousands of photos, hours of video footage, or a vast library of apps and games. This capacity is particularly beneficial for devices with limited internal storage, effectively expanding their usability and lifespan. Ease of Use and Reliability Setting up and using the card is straightforward—simply insert it into your device, and it's ready to go. The card maintains consistent performance over time, which speaks to its reliability. I have used it extensively over the past few weeks without encountering any data corruption or loss, which can be a concern with lower-quality memory cards. Cost-Effective Solution One of the most compelling aspects of this memory card is its affordable price point. It offers features and performance comparable to premium brands but at a fraction of the cost. This affordability makes it an excellent option for students, professionals, and anyone looking to expand their device's storage without making a significant investment. Considerations Device Compatibility: While it works with most devices that support micro SDXC cards, it's advisable to check your device's maximum supported memory capacity to ensure compatibility. Write Speed for Professional Use: For professional videographers capturing high-bitrate 4K footage, the write speeds are sufficient but might not match the performance of specialized high-end cards designed for that purpose. Conclusion The Amazon Basics 128GB Micro SDXC Memory Card with Full Size Adapter is a dependable and efficient storage solution that doesn't break the bank. Its combination of speed, durability, and generous capacity makes it suitable for a wide range of uses—from expanding your smartphone's storage to serving as a reliable medium for your digital camera. This memory card stands as a testament to how quality and affordability can go hand in hand, making it a smart purchase for anyone in need of additional storage space.
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Reviewed in the United States on November 27, 2024 by Brandon C
Style: 256GB
Capacity: 256 GB
Excellent value for a 256GB microSD card — I honestly was not expecting this level of performance at this price point. The Amazon Basics branding had me a little skeptical at first, but after putting it through its paces, I am genuinely impressed. Speed & Performance: The card delivers on its A2 and U3 ratings. Read speeds are consistently near the advertised 100 MB/s, which makes file transfers fast and smooth. I use it in my dashcam and security camera and have experienced zero dropped frames or buffering issues. The A2 application performance rating also means it handles app loading and random read/write tasks reliably. Storage & Reliability: 256GB is plenty of space for extended video recording, photos, and app storage. I have been using it daily for several months with no data loss, corruption, or errors. It gets warm but never hot, even during continuous 4K recording sessions. Compatibility: It comes with a full-size SD adapter which is a nice touch — useful for transferring files to a laptop or camera. Compatible with a wide range of devices including smartphones, tablets, dashcams, drones, and action cameras. Value for Money: This is where the card truly shines. Compared to branded alternatives like SanDisk or Samsung at the same capacity, this card offers comparable real-world performance at a significantly lower price. For everyday use cases like dashcams, security cameras, or extra phone storage, there is simply no need to pay a premium. Highly recommend this card for anyone looking for a reliable, fast, and affordable storage solution.
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Reviewed in the United States on March 14, 2026 by Kailash
Style: 128GB
Capacity: 128 GB
✅ I have been using this same brand for my GoPro and ace 360 for years now and I love the brand. ✅very reliable and great memories. When I play it back in 4k ✅ easy to install and is very compatible with my GoPro, ace 360 and Cameron camera. ✅ love how I can take it out of one camera and put it into another with no issues so I would say very versatile. ✅ connects to my PC for easy off loading onto my external hard drive
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Reviewed in the United States on June 28, 2026 Reviewed in the United States on June 28, 2026 by Joshelift
Style: 64GB(2 pack)
Capacity: 64 GB (2pack)
Fast Little Cards That Work as Advertised These Amazon Basics 64GB microSDXC cards work as advertised—A2, U3, Class 10 with read speeds up to about 100 MB/s and write fast enough for apps, photos, and 4K video on compatible devices. The included full‑size SD adapters make them easy to drop into cameras or laptops, and the 2‑pack is a solid value if you want reliable storage for phones, tablets, dash cams, or handhelds without paying premium‑brand prices.
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Reviewed in the United States on April 19, 2026 by Jason Clinton
Style: 256GB
Capacity: 256 GB
I have cameras around my property, I have the option to use cloud storage from the camera maker, adding a DVR/HD, or install an sd card on each respective camera. I found that there's always the potential that someone, if they are truly intent on doing it, will take the cameras, and if they make entry into my home or business, they'll steal anything of value, and a DVR/HDD/NVR almost always will be taken if found. I keep most of my cameras (which are all webcam), most are bullet style, but I do have several PTZ, they are all wireless, but obviously have a power supply connected, and I have since started to only purchase solar powered, but have had marginal success with them, as those style of cameras are limited by where you put them (full-sun light versus limited limited line of sight with the sun). Ultimately, I prefer the sd cards, they are easy to install, are remarkably cheap, and to date, I have NOT had any fail prematurely (usually the camera, or it's power source/supply does well before any issues are observed by the sd card. Originally I thought I had an issue with the sd cards not provisioning/formatting, but then realized each camera's maker has expectations on how the format occurs. The number, and compatibility I have with this brand of SD card, and the overall life span leaves me a happy customer, and ensures I will continue to purchase these in the future.
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Reviewed in the United States on April 24, 2026 by Past_DVO_Present
Style: 128GB
Capacity: 128 GB
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**!
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Reviewed in the United States on January 2, 2025 by Batman
Style: 64GB(2 pack)
Capacity: 64 GB (2pack)
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.
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Reviewed in the United States on June 30, 2025 by Customer Review