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Amazon Basics microSDXC Memory Card with Full Size Adapter, A2, U3, 128GB Review

The Amazon Basics 128GB microSDXC card is a storage accessory aimed at cameras, tablets, smartphones, gaming devices, and other compatible electronics. It stands out most for easy setup, broad compatibility, and strong value, while the main caution is mixed long-term reliability feedback from a smaller portion of buyers.
Expert reviewed
87
Overall score
Data-driven scoring Expert reviewed Updated analysis

Why we ranked it highly

The Amazon Basics microSDXC Memory Card with full-size adapter is a 128GB removable storage card designed for devices such as cameras, drones, smartphones, tablets, laptops, and Nintendo Switch. Based on the provided specifications, it targets buyers who want affordable expandable storage with support for faster use cases, including 4K video recording, burst photography, app storage, and general media transfer. Its ratings include UHS-I U3, V30, and A2, with claimed read speeds up to 100MB/s, which positions it as more than a basic low-speed card for casual storage. The strongest aspects in the supplied scores are setup, portability, compatibility, customer satisfaction, and value. Reviews also frequently mention simple installation, smooth formatting, and dependable everyday performance. The main area to watch is reliability, as the overall sentiment is positive but not completely consistent, with some buyers reporting early failures.
90-day review Expert reviewed User feedback Data scoring

Key specs

Features & Specs

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

Measurements

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

Item details

Brand
Amazon Basics
Model Name
LSMICRO128GU3
Model Number
LSMICRO128GU3
Manufacturer
Amazon
UPC
840095874021
Mfr Part Number
LSMICRO128GU3
Unit Count
1.0 Count

Additional details

Color
Black

Scores breakdown

88 /100

Performance

82 /100

Features

90 /100

Usability

76 /100

Design

85 /100

Connectivity

88 /100

Speed

76 /100

Reliability

92 /100

Compatibility

Strengths

  • High compatibility score and broad real-world use across cameras, tablets, Android devices, Nintendo Switch, drones, dashcams, and action cameras.
  • Strong value profile, with many reviews describing it as good value for money for the speed and capacity offered.
  • Fast enough for demanding storage tasks, with UHS-I U3, V30 and A2 ratings and claimed read speeds up to 100MB/s.
  • Very easy to install and start using, supported by a high setup score and repeated feedback about simple formatting and device recognition.
  • Works well for 4K video, burst shooting, app storage, and everyday file transfers based on product details and customer feedback.
  • Includes a full-size SD adapter, which adds flexibility for laptops, cameras, and other devices with standard SD slots.
  • Excellent portability thanks to its tiny size, low weight, and suitability for travel, cameras, drones, and mobile devices.

Limitations

  • Reliability is not flawless, with mixed feedback in the review summary and some reports of failures after only a few days.
  • Read speed is stated as up to 100MB/s in lab testing, so real-world transfer performance can vary by device and workflow.
  • Not compatible with Nintendo Switch 2 according to the provided product details.
  • Build and design scores are more average than standout, which suggests this is a practical storage option rather than a premium-feeling one.
  • One review reports limitations with the included full-size adapter for formatting or unzipping files, so adapter performance may not be ideal in every setup.
  • Usable capacity is lower than labeled capacity due to formatting and calculation differences, which buyers should expect.
  • Warranty and support information is limited in the provided data.

Ideal user profiles

  • Users who want affordable, high-capacity storage for cameras, tablets, and Android devices.
  • Nintendo Switch owners looking for extra game storage, provided they are not buying for Switch 2.
  • Action camera, dashcam, and security camera users needing microSD storage rated for sustained video recording.
  • Buyers who prioritize easy setup, wide compatibility, and strong value over premium branding.

Use cases

  • Expanding storage on Nintendo Switch for downloaded games and media.
  • Recording 4K or Full HD video on action cameras, security cameras, and dashcams.
  • Storing photos, RAW files, and burst images in compatible cameras and drones.
  • Adding app and media storage to Android phones and tablets.
  • Transferring files between devices using the included full-size SD adapter.
  • Travel and outdoor recording where water resistance and temperature tolerance are useful.

Fit and positioning

Who this works for

Category positioning

Within the microSD card category, this Amazon Basics model looks like a value-focused mid-range option rather than a premium specialist card. Its speed ratings and 4K-ready positioning make it more capable than entry-level storage cards, while its pricing and customer feedback suggest it is aimed at practical buyers who want strong everyday performance without paying extra for a flagship brand tier. The high compatibility and setup scores also make it beginner-friendly for users adding storage to multiple device types.

Best for

This card is best for buyers who want a flexible storage upgrade for cameras, tablets, Android devices, dashcams, action cameras, or Nintendo Switch. Its scores are strongest for compatibility, setup, portability, customer satisfaction, and value, which makes it especially suitable for users who want a straightforward card that works across many devices and handles photos, video, apps, and everyday file storage well.

Not best for

Buyers who need the strongest possible long-term reliability record for critical data may want to be more cautious, because the reliability score is only moderate and some reviews mention early failures. It is also not the right choice for Nintendo Switch 2, and users who rely heavily on the included SD adapter for every workflow should note that one review reported limitations with formatting and file operations through the adapter.

Performance analysis

How it performs in practice

Each scoring dimension is separated into a compact card so the strengths and tradeoffs are easier to compare without reading one long block.

Performance analysis

For a general-purpose microSDXC card, performance looks strong. The card has a performance score of 88 and is positioned for 4K UHD video, RAW files, burst-mode photography, and app use. The supplied review data supports that reasonably well, with buyers reporting smooth use in GoPro cameras, dashcams, security cameras, tablets, and Nintendo Switch. One reviewer also reported real-world transfer rates around 90 to 95MB/s on their device, which is close to the stated maximum read speed. As always with storage media, actual results depend heavily on the host device and card reader.

Feature analysis

The feature set is practical and competitive for this type of card. It includes a full-size SD adapter, U3, V30 and A2 speed classifications, and stated support for 4K video and Android app performance. It is also described as shock-resistant, IPX6 water-resistant, temperature-resistant, X-ray-resistant, and magnetic-proof. The feature score of 82 suggests a solid but not category-leading package, which fits a value-focused card that covers the key essentials well.

Usability analysis

Usability is one of the card's strongest areas, reflected in a score of 90. Reviews repeatedly mention easy installation, simple formatting, and immediate recognition in devices including tablets, cameras, and Nintendo Switch. The included adapter also increases flexibility when moving files through standard SD slots. There is a small caveat from one review that the bundled adapter may not be ideal for every task, but overall day-to-day use appears straightforward and low-friction.

Design

Design is mainly about practicality here rather than style, and the score of 76 reflects that. As a microSD card, it is compact, lightweight, and easy to carry, with a bundled full-size adapter that improves versatility. The physical design is effective for users who swap storage between devices, but there is little in the supplied data to suggest any standout ergonomic or premium design advantage. It appears to be a simple, functional storage product first.

How it compares

Compared with the broader microSD card category, this model appears to compete most strongly on value, device compatibility, and ease of use rather than on premium-tier differentiation. Its speed ratings and review feedback suggest it is capable enough for 4K video, app storage, and general media use, which puts it above basic low-speed cards. It also benefits from a bundled adapter and broad support across cameras, tablets, Android devices, dashcams, and Nintendo Switch. Where it looks less dominant is reliability confidence and support clarity, since those areas do not score as highly as its everyday usability and value metrics.

Ranking summary

With an overall score of 87, this Amazon Basics microSDXC card ranks as a strong all-round storage option for buyers who prioritize compatibility, easy setup, portability, and value. Its best sub-scores include setup at 94, customer satisfaction at 94, compatibility at 92, value at 91, and portability at 98, all of which support its appeal as a practical everyday card for many devices. Performance and speed are also strong at 88. The main reason it does not rank even higher is reliability, which scores 76 due to mixed reports about early failures despite mostly positive real-world feedback.

Buying advice

This card makes the most sense if you want affordable expandable storage for a compatible camera, tablet, Android device, action camera, dashcam, or Nintendo Switch. Before buying, check your device's maximum supported capacity and remember that usable space will be lower than the labeled 128GB. If you plan to rely heavily on the included full-size adapter, it may be worth confirming that your workflow is straightforward, as one review noted adapter limitations. If your priority is low-cost, easy-to-install storage with strong day-to-day performance, it is a good fit. If your use case is mission-critical and long-term reliability is your top concern, consider that trade-off carefully.
87
Overall score

Final verdict

The Amazon Basics 128GB microSDXC Memory Card is a strong option in the value segment of the microSD market. Its main strengths are broad compatibility, easy setup, good real-world speed for everyday use and 4K-capable workloads, and a high level of customer satisfaction across a very large review base. The main limitation is reliability consistency, as some users report early failures even though most feedback is positive. For general storage expansion in cameras, tablets, Android devices, and Nintendo Switch, it looks like a sensible and cost-effective choice, provided you are comfortable with a modest reliability trade-off.
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Key topics

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Frequently asked questions

Is the Amazon Basics microSDXC Memory Card worth it?
Yes, based on the provided data it looks like a strong value choice. It has an overall score of 87, a high value score of 91, and a very large review base with a 4.7 out of 5 rating. The main caution is that reliability feedback is mixed, with some reports of early failure.
Is this Amazon Basics microSD card good for Nintendo Switch?
It appears to work well with Nintendo Switch, and the review summary specifically mentions positive feedback from Switch users. The product details clearly say it is compatible with Nintendo Switch, but not with Nintendo Switch 2. Buyers should also confirm their device's supported capacity before purchase.
Is the Amazon Basics microSDXC card good for 4K video recording?
The product details indicate that it is optimized for 4K and Full HD recording, with UHS-I U3, V30 and A2 ratings. Reviews also describe solid results in GoPro, security camera, and dashcam use. While that points to good real-world performance, exact results will still depend on the recording device.
What are the main limitations of the Amazon Basics microSDXC Memory Card?
The main limitation is reliability consistency rather than outright performance. Most feedback is positive, but some customers report failures after a short period. There is also one review noting that the included SD adapter may be less reliable for certain tasks like formatting, and the card is not compatible with Nintendo Switch 2.
Is the Amazon Basics microSDXC card easy to set up?
Yes. It has a setup score of 94, and reviews repeatedly mention easy installation, simple formatting, and quick recognition in devices such as tablets, cameras, and Nintendo Switch. The included full-size adapter also helps if you need to use it in devices with standard SD card slots.
How fast is the Amazon Basics microSDXC Memory Card?
The listed read speed is up to 100MB/s, and it carries U3, V30 and A2 ratings. One review reports seeing around 90 to 95MB/s on their device, which aligns fairly well with the claim. As usual, actual transfer speed will vary depending on the reader, device, and file type.
Is this microSD card compatible with cameras, phones, and tablets?
Compatibility is one of its strongest areas, supported by a compatibility score of 92. The provided specs list support for cameras, drones, laptops, smartphones, and tablets, and reviews mention successful use in cameras, tablets, Android phones, GoPro devices, security cameras, and dashcams.
Does the Amazon Basics microSDXC card have good reliability?
Reliability looks good overall, but not flawless. Many reviews describe stable use with no corruption or issues, and the product has a strong customer rating overall. However, the aggregated review summary and the reliability score of 76 suggest there are enough reports of early failures to keep this from being a top-tier reliability pick.

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