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SanDisk SDSQUA4-032G-GN6MA 32GB Ultra MicroSD Card — main product image
SanDisk SDSQUA4-032G-GN6MA 32GB Ultra MicroSD Card
SanDisk SDSQUA4-032G-GN6MA 32GB Ultra MicroSD Card
SanDisk SDSQUA4-032G-GN6MA 32GB Ultra MicroSD Card
SanDisk SDSQUA4-032G-GN6MA 32GB Ultra MicroSD Card
SanDisk SDSQUA4-032G-GN6MA 32GB Ultra MicroSD Card
SanDisk SDSQUA4-032G-GN6MA 32GB Ultra MicroSD Card
SanDisk

SanDisk SDSQUA4-032G-GN6MA 32GB Ultra MicroSD Card

★★★★★4.7 (173835 reviews)
1920x1080USB 3.0

Fast, reliable 32GB microSD card with A1 app performance and durable, weather-proof design for phones, tablets, and cameras.

$28.92*
✓ In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The SanDisk Ultra 32GB microSDHC UHS-I card is built for users who need affordable, reliable expandable storage for 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 — it handles photo transfers, app data, and Full HD video capture without bottlenecks. The A1 app performance rating ensures that apps stored on the card launch and operate with minimal lag, a useful feature for devices with limited internal storage.

Durability is a standout aspect of this card. SanDisk has engineered it to withstand water, extreme temperatures, X-rays, magnets, and drops, so it holds up whether you're shooting in a rainstorm or traveling through airport security. The 10-year manufacturer warranty adds long-term peace of mind. While 32GB won't satisfy users who need deep storage for large video libraries, it provides a practical and cost-effective solution for general photography, app expansion, and everyday file storage.

Key Features

Ideal for Android smartphones and tablets, and MIL cameras

Up to 32GB 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. See official SanDisk website.

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.

10-year manufacturer warranty (See official SanDisk website for more details regarding warranty in your region.)

Specifications

Brand
SanDisk
Model
SDSQUA4-032G-GN6MA
Capacity
32GB
Flash Memory Type
Micro SDHC
Speed Class
Class 10, U1, A1
Read Speed
Up to 120MB/s
Hardware Interface
microSDHC
Durability
Waterproof, Shockproof, X-Ray Proof, Magnet Proof, Temperature Proof, Drop Proof
Compatible Devices
Android Smartphones, Tablets, MIL Cameras
Warranty
10-Year Manufacturer Warranty

SanDisk Ultra microSD vs Extreme — Which Tier Do You Need?

The SanDisk Ultra microSD (SDSQUAR-032G-GN6MA family) is SanDisk's value-tier microSD line — positioned below the Extreme microSDXC family covered separately on the Studio Supplies homepage. Per SanDisk / Western Digital's official Ultra microSD product page, the Ultra line is rated for read speeds up to 120 MB/s (vs the Extreme's 160-190 MB/s), Class 10 / UHS-I U1 (vs Extreme's V30 U3 + A2), and is positioned for budget Android smartphones, Full HD video capture, 4K-streaming-but-not-record use cases. The Ultra is one of the highest-volume products on Amazon — over 640K customer reviews on the 32 GB SKU alone — making it a critical capacity-tier decision for any microSD buyer.

Ultra vs Extreme — The Speed Class Difference

Per Camera Memory Speed's microSD speed-class methodology, the practical impact of Ultra-vs-Extreme is dictated by the workload:

  • Full HD 1080p video recording: Both Ultra (Class 10 / UHS-I U1) and Extreme (V30) handle this comfortably. Ultra is sufficient.
  • 4K video recording: The Ultra (U1) is below the V30 sustained-write requirement for many 4K cameras. The Extreme (V30) is the minimum tier; some 6K / 8K cameras require V60 / V90 (Extreme PRO).
  • Random-access app performance (Android adoptable storage, Steam Deck): A2 (Extreme) accelerates random IOPS for app loads versus A1 (most Ultra). The A1 / A2 difference is meaningful for high-app-count phones / handheld gaming devices.
  • Photo burst capture: Both tiers handle JPEG and small-RAW burst; the Extreme's higher sustained write reduces buffer-clear time on cameras shooting large RAW bursts.
  • Steady-state Switch / Steam Deck game capture: Both work; the Extreme's faster random reads slightly reduce game-load times.

Where the Ultra Specifically Wins

  • Budget Android smartphones needing expandable storage without demanding 4K-video-record capability
  • Dash cams recording Full HD continuously — the Ultra's Class 10 sustained write is sufficient and the lower price tier matches dash-cam-replacement budgets
  • Security cameras (1080p) writing 24/7 footage — Ultra is the appropriate tier; high-endurance variants (SanDisk High Endurance) are even better for this use case
  • Bulk file transfer / archive use — when raw capacity per dollar matters more than peak speed
  • Casual photographers shooting in JPEG + occasional 1080p video on consumer point-and-shoot cameras
  • 2-pack / multi-pack archival deployments — the Ultra ships in cost-effective multi-packs (the 32 GB 2-pack at SDSQUAR-032G-GN6MT is a high-volume SKU)

Where Buyers Should Step Up to the Extreme

  • 4K video capture on GoPro HERO / DJI drones / mirrorless cameras → Extreme (V30 minimum)
  • Nintendo Switch + Steam Deck game-load performance → Extreme (A2 random IOPS)
  • Modern Android phones with adopted-storage / app-heavy use → Extreme (A2)
  • Drone aerial recording with peak performance bursts → Extreme (V30 sustained write)
  • Pro mirrorless / cinema cameras requiring V60 / V90 → Extreme PRO (different product line — higher tier than Extreme)

Honest Limits Buyers Should Know

  • Per Camera Memory Speed's methodology, Ultra's 120 MB/s rated read is sequential-optimized; random-access workloads where A1 vs A2 matters (Android Adoptable Storage, Switch / Steam Deck game loads) deliver materially slower performance than the Extreme's A2 tier
  • UHS-I U1 sustained write floor is 10 MB/s — sufficient for Full HD video but inadequate for any 4K recording where V30 (30 MB/s sustained) is the minimum
  • Card-warranty is lifetime per SanDisk policy, but with a Class-10 sustained-write spec lower than Extreme; cards used in continuous-record applications (security cameras) will reach wear-out faster than purpose-built high-endurance variants
  • 2-TB capacity is not available in the Ultra line — Ultra tops out at lower capacities; high-capacity buyers needing 1 TB+ should step to Extreme variants where 1 TB is the production ceiling

Sources & Citations

  1. SanDisk / Western Digital, "SanDisk Ultra UHS-I microSD product page," westerndigital.com (accessed 2026-05-18)
  2. Camera Memory Speed, "microSD speed-class testing methodology and product reviews," cameramemoryspeed.com (accessed 2026-05-18)
  3. Nintendo Support, "microSD Cards FAQ — Nintendo Switch," en-americas-support.nintendo.com (accessed 2026-05-18)

Last verified: 2026-05-18

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Pros & Cons

👍 Pros

  • Transfer speeds up to 120MB/s make file moves and backups quick
  • Fast 120MB/s read speed for quick file transfers
  • Transfer speeds up to 120MB/s make file moves and photo backups quick
  • A1-rated performance allows smoother app loading when apps are stored on the card
  • A1-rated performance supports smoother app loading when used as adoptable storage
  • A1 rating enables smoother app performance when running applications from the card
  • Extensive durability protections including waterproof, shockproof, and temperature-proof construction
  • Extensive durability ratings including waterproof, shockproof, and temperature proof
  • Extensive durability ratings including waterproof, shockproof, and temperature proof construction
  • Backed by a 10-year manufacturer warranty
  • 10-year manufacturer warranty provides long-term peace of mind
  • 10-year manufacturer warranty provides long-term peace of mind
  • Broad device compatibility across Android phones, tablets, and cameras
  • Wide compatibility with Android phones, tablets, and MIL cameras

👎 Cons

  • 32GB capacity fills up quickly with high-resolution video or large app libraries
  • 32GB capacity fills up quickly when recording Full HD video
  • 32GB capacity fills up quickly when recording Full HD video over extended sessions
  • Write speeds are significantly lower than the advertised 120MB/s read speed
  • Write speeds are significantly lower than the advertised read speeds
  • Write speeds are notably lower than read speeds and are not specified by SanDisk
  • Does not include a full-size SD adapter in all packages, which may be needed for cameras and laptops
  • Does not support 4K video recording due to its UHS-I U1 speed class
  • Not ideal for 4K video recording due to UHS-I speed class limitations
  • Does not include a full-size SD adapter in all packaging versions
  • No full-size SD adapter is included in the package
  • UHS-I speed class limits maximum performance compared to UHS-II cards

Frequently Asked Questions

It is designed for Android smartphones, tablets, and MIL cameras. It uses the microSDHC form factor and is compatible with any device that accepts microSDHC cards with UHS-I support.
It is designed for Android smartphones, tablets, and MIL cameras that accept microSDHC cards.
It is designed for Android smartphones, tablets, and MIL cameras that accept microSDHC cards.
It supports read speeds up to 120MB/s, allowing you to move approximately 1,000 photos in a minute when used with a USB 3.0 reader.
It supports read speeds up to 120MB/s, allowing you to move approximately 1,000 photos in a minute with a USB 3.0 reader.
It supports read speeds up to 120MB/s, which allows you to transfer approximately 1,000 photos per minute when used with a USB 3.0 card reader. Write speeds are lower and vary depending on the host device.
The A1 (App Performance Class 1) rating means the card can handle 1,500 read IOPS and 500 write IOPS, making it capable of running apps directly from the card on Android devices with smoother performance than non-rated cards.
The A1 rating indicates the card meets a minimum threshold for random read/write performance (1,500/500 IOPS), which helps apps stored on the card load and run more smoothly.
The A1 rating means the card meets minimum random read/write performance thresholds (1,500 read IOPS, 500 write IOPS), so apps installed on the card load and run more smoothly.
Yes. It is rated as waterproof, shockproof, X-ray proof, temperature proof, and magnet proof, making it suitable for use in demanding environments.
Yes, it is rated as waterproof, shockproof, x-ray proof, temperature proof, and magnetic proof, making it suitable for a wide range of environments.
Yes, the SanDisk Ultra 32GB is engineered to be waterproof, shockproof, temperature-proof, X-ray proof, magnetic proof, humidity proof, and drop proof, making it reliable in harsh conditions.
SanDisk provides a 10-year manufacturer warranty. Specific terms may vary by region, so check the official SanDisk website for details.
SanDisk backs this card with a 10-year manufacturer warranty.
SanDisk provides a 10-year manufacturer warranty. Regional details are available on the official SanDisk website.

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