[Older Version] SanDisk 128GB Ultra MicroSDXC UHS-I Memory Card with Adapter - 100MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUAR-128G-GN6MA

by SanDisk

4.7(219,879)
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Value Score

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Should you buy it?

The SanDisk 128GB Ultra MicroSDXC UHS-I Memory Card is a reliable and cost-effective solution for expanding storage on various devices. With high read and write speeds, wide compatibility, and an affordable price point, this card meets the needs of many users. The A1-rated performance is a significant advantage for those who frequently load apps on their devices.

However, potential buyers should be aware of the mixed reports on durability and the fact that actual user storage may be less than advertised. Despite these minor drawbacks, the SanDisk 128GB MicroSD card offers excellent value for money and is a solid choice for anyone needing additional storage space. If you're willing to take precautions with backups and handling, this card is well worth considering.

Pros & Cons

Pros

  • High storage capacity
  • Fast read and write speeds
  • Compatible with a wide range of devices
  • Affordable price point
  • A1-rated performance for app loading

Cons

  • Mixed reports on durability
  • Actual user storage less than advertised

Where to Buy

SanDisk 128GB MicroSD: Reliable Storage Solution

In the age of digital devices, expandable storage is crucial. The SanDisk 128GB Ultra MicroSDXC UHS-I Memory Card offers a cost-effective way to increase storage capacity for a variety of devices, from smartphones to cameras. With high-speed performance and compatibility with multiple platforms, this memory card promises to be a reliable storage solution.

In this comprehensive review, we'll delve into the performance, reliability, and overall value of the SanDisk 128GB MicroSD card. We'll explore its speed, compatibility, and real-world usage based on customer feedback. Whether you're a tech enthusiast or a casual user, this review will help you determine if this memory card meets your needs.

Performance and Speed

The SanDisk 128GB MicroSD card boasts impressive read speeds of up to 100MB/s, allowing for quick transfer of large files. This speed is particularly beneficial for transferring photos and videos, with the ability to move up to 1000 photos in a minute. The card's A1-rated performance also ensures faster app loading, enhancing the user experience on compatible devices.

Compatibility and Versatility

One of the strengths of the SanDisk 128GB MicroSD card is its wide compatibility. Certified to work with Android smartphones, tablets, and Chromebooks, this card is versatile enough to meet various storage needs. Customers appreciate the flexibility of using the card across different devices, making it a convenient solution for expanding storage.

Reliability and Durability

While the majority of customers report positive experiences with the SanDisk 128GB MicroSD card, there are mixed reports on durability. Most users find the card reliable, with no issues during regular use. However, a small percentage of customers have experienced card failures or data loss, highlighting the importance of regular backups and cautious handling.

Value for Money

Priced competitively, the SanDisk 128GB MicroSD card offers excellent value for money. Customers consistently praise the card's affordability, especially when considering its high storage capacity and fast performance. For those looking to expand their device's storage without breaking the bank, this card is an attractive option.

Verdict

The SanDisk 128GB Ultra MicroSDXC UHS-I Memory Card is a reliable and cost-effective solution for expanding storage on various devices. With high read and write speeds, wide compatibility, and an affordable price point, this card meets the needs of many users. The A1-rated performance is a significant advantage for those who frequently load apps on their devices.

However, potential buyers should be aware of the mixed reports on durability and the fact that actual user storage may be less than advertised. Despite these minor drawbacks, the SanDisk 128GB MicroSD card offers excellent value for money and is a solid choice for anyone needing additional storage space. If you're willing to take precautions with backups and handling, this card is well worth considering.

Rating: 4.7/5

Recommended For:

  • Android smartphone and tablet users
  • Chromebook owners
  • Those needing high-speed storage expansion
  • Users looking for cost-effective storage solutions

Not Recommended For:

  • Users requiring the highest durability
  • Those who need the full advertised storage capacity

Perfect For

  • Android smartphone and tablet users
  • Chromebook owners
  • Those needing high-speed storage expansion
  • Users looking for cost-effective storage solutions

Skip If

  • Users requiring the highest durability
  • Those who need the full advertised storage capacity

Price History (Last 180 days)

Specifications

Color
‎Grey, Grey,Red
Special Feature
‎Drop Proof, Temperature Proof, Water Proof, X Ray Proof
Read Speed
‎100 Megabytes Per Second
Item Weight
‎0.01 Pounds
Warranty Type
‎Manufactured warranty
Write Speed
‎40x
Hardware Interface
‎microSDXC
Secure Digital Association Speed Class
‎Class 10
Product Dimensions
‎0.03"L x 0.59"W
Manufacturer
‎Western Digital Technologies Inc.
UPC
‎619659160395
Global Trade Identification Number
‎00619659160395, 00880924867213
RAM
‎128 GB
Hard Drive
‎128 GB Memory Card
Item model number
‎SDSQUAR-128G-GN6MA
Item Weight
‎0.16 ounces
Item Dimensions LxWxH
‎0.03 x 0.59 x 0.1 inches
Department
‎Memory
ASIN
‎B073JYC4XM
Is Discontinued By Manufacturer
‎No
Date First Available
‎July 1, 2017
Customer Reviews
4.7 4.7 out of 5 stars 219,879 ratings 4.7 out of 5 stars
Best Sellers Rank
#182 in Micro SD Memory Cards
Brand
SanDisk
Model Name
SanDisk Ultra 128GB microSDXC UHS-I card with Adapter - SDSQUAR-128G-GN6MA
Flash Memory Type
Micro SD
Memory Storage Capacity
128 GB
Compatible Devices
Smartphone, Tablet

Reviewed By

Theo Armand

Contributing Editor

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Last updated: October 25, 2025

Our Review Process
Theo Armand

Theo tackles everyday tech at Review Atlas—air purifiers, robot vacuums, and smart ranges that claim to “learn.” He benchmarks suction, filtration, and energy use with the same discipline he once applied to industrial HVAC projects. His reviews balance lab numbers with lived‑in testing, surfacing products that perform when your home is actually messy.