SanDisk SDSQUA4-064G 64GB Ultra microSDXC Memory Card

Name: SanDisk SDSQUA4-064G 64GB Ultra microSDXC Memory Card
Brand: SanDisk
SKU: SDSQUA4-064G-GN6MA

Overview

The SanDisk SDSQUA4-064G Ultra microSDXC UHS-I card provides 64GB of expandable storage aimed squarely at Android smartphones, tablets, and MIL cameras. With read speeds up to 120MB/s — achieved through SanDisk's proprietary technology that pushes beyond the standard UHS-I 104MB/s ceiling — the card handles file transfers briskly, moving up to 1,000 photos per minute with a USB 3.0 reader. The UHS Speed Class U1 and Video Speed Class C10 ratings ensure a reliable minimum write throughput suitable for recording Full HD 1080p video.

What sets the Ultra apart from basic microSD cards is its A1 App Performance Class rating, which guarantees minimum random I/O performance of 1,500 read and 500 write IOPS. This means apps stored on the card load and run more responsively than on cards without the A1 designation. Durability is another strength — the card carries waterproof, temperature proof, shockproof, X-ray proof, magnetic proof, humidity proof, and drop proof ratings, giving confidence that data remains safe in demanding conditions. Though this particular SKU has been discontinued, it continues to offer solid performance and value for users seeking reliable everyday expandable storage.

Key Features

This version has been discontinued by manufacturer

Ideal for Android smartphones and tablets, and MIL cameras

Up to 64GB to store even more hours of Full HD video(2); 1GB=1,000,000,000 bytes. 1TB=1,000,000,000,000 bytes. Actual user storage less; (2)Full HD (1920x1080) video support may vary based upon host device, file attributes, and other factors.

Up to 120MB/s transfer speeds let you move up to 1000 photos in a minute(5); Up to 120MB/s read speed, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speed. Write speeds lower. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes.; (5)Based on internal testing on images with an average file size of 3.55MB (up to 3.7GB total) with USB 3.0 reader. Your results will vary based on host device, file attributes, and other factors.

Load apps faster with A1-rated performance(1); (1)A1 performance is 1500 read IOPS, 500 write IOPS. Based on internal testing. Results may vary based on host device, app type and other factors.

Specifications

Capacity

64GB

Speed Class

C10, U1, A1

Read Speed

Up to 120MB/s

Form Factor

microSDXC

Compatibility

Android Smartphones, Tablets, MIL Cameras

Durability

Waterproof, Temperature Proof, Shockproof, X-Ray Proof, Magnetic Proof, Humidity Proof, Drop Proof

Status

Discontinued by Manufacturer

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Pros & Cons

👍 Pros

Up to 120MB/s read speed enables fast file transfers and media access
A1 app performance rating supports smoother app loading directly from the card on Android devices
Extensive durability protections including waterproof, shockproof, temperature proof, and X-ray proof
64GB capacity stores hours of Full HD video, thousands of photos, or substantial app data
UHS-I U1 C10 speed class ensures consistent minimum write performance for Full HD video recording

👎 Cons

Write speeds are notably lower than the 120MB/s read speed, which affects recording and file-saving performance
This specific version has been discontinued by the manufacturer
64GB capacity may fill quickly with 4K video or large app libraries
Maximum read speed of 120MB/s requires a compatible USB 3.0 reader and host device to achieve

Frequently Asked Questions

What read speed does this SanDisk Ultra 64GB card achieve?

The card delivers up to 120MB/s read speeds, allowing you to transfer approximately 1,000 photos per minute when used with a USB 3.0 reader. Write speeds are lower than read speeds.

What does the A1 rating mean on this card?

The A1 (App Performance Class 1) rating means the card meets minimum random read and write IOPS thresholds — 1,500 read and 500 write — which translates to smoother performance when running apps directly from the card on Android devices.

Is this card waterproof and shockproof?

Yes, the card is engineered to be waterproof, temperature proof, shockproof, X-ray proof, magnetic proof, and drop proof, protecting your data across a range of environmental conditions.

What devices is this microSDXC card compatible with?

It is designed for use with Android smartphones and tablets as well as MIL cameras. A microSD-to-SD adapter may be required for devices with full-size SD card slots.

Is this particular version still in production?

No, this version has been discontinued by the manufacturer. However, it remains widely available and SanDisk continues to produce updated Ultra microSD models.