SanDisk

SanDisk SDSQXVF-032G-AN6MA Extreme 32GB microSDHC Card

4.5 (11 reviews)
4K

90MB/s write speeds and UHS-I Class 3 rating let the SanDisk Extreme 32GB microSDHC keep up with 4K video capture without dropping frames.

$39.99*
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*Price sourced from Amazon.com. Last updated:Jul 21, 2026.Price and availability are subject to change.

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Overview

The SanDisk Extreme 32GB microSDHC UHS-I card is engineered around a specific performance requirement: 4K Ultra HD video capture demands sustained write speeds that many microSD cards marketed as "Class 10" cannot actually maintain under load. SanDisk addresses this with dual speed class certification — U3 and V30 — both of which guarantee a minimum 30MB/s sustained write floor. The up to 90MB/s write ceiling means the card handles 4K bitrates from action cameras, drones, and compatible smartphones with headroom above the V30 floor, reducing the risk of the buffer stalls that cause dropped frames or recording interruptions. The 100MB/s read speed is the post-shoot benefit: fast card readers paired with this card offload a day's footage significantly faster than older generation cards.

The included SD adapter is a practical inclusion that expands the card's deployment range to any device with a full-size SD slot — useful for photographers who want a single card that works in both their mirrorless camera and their drone. The Extreme line's durability certifications — resistance to water, temperature extremes, shock, and X-ray — reflect the field conditions action and travel photographers actually encounter. At 32GB, the card is best positioned for controlled shoots, burst photography sessions, and mixed photo/video workflows where 4K recording is one component rather than the entire session. For operators running sustained 4K documentation or long-form video capture, stepping up to the 64GB Extreme or Extreme Pro provides the buffer that makes full-day shooting manageable without mid-session interruptions.

Key Features

The speed you need

Shoot 4K Ultra HD video today

All the Memory you need

SD adapter for versatility

Built for extreme conditions

Specifications

Card Type
microSDHC
Storage Capacity
32GB
Video Support
4K Ultra HD
Condition Resistance
Extreme conditions
Included Accessory
SD adapter

Frequently Asked Questions

Yes. 4K UHD recording requires a minimum V30 (Video Speed Class 30) rating, which guarantees 30MB/s sustained write performance. The SanDisk Extreme 32GB exceeds this with up to 90MB/s write speeds and carries both U3 (UHS Speed Class 3) and V30 ratings. The card sustains the write throughput that 4K video requires without dropping frames.
The card achieves up to 100MB/s read speed — relevant primarily when transferring files from the card to a computer. In-camera performance is governed by write speed, not read speed. The read speed advantage matters most when you're offloading a full card during a shoot day and don't want to wait on data transfers.
The card is a microSDHC format, which fits microSD slots natively. It does not fit a standard full-size SD slot without an adapter. An SD adapter is included in the package, which allows the card to be used in cameras and card readers with a full-size SD slot — providing versatility across both slot types.
SanDisk markets the Extreme line as resistant to water, temperature extremes, shock, and X-ray exposure. It is not rated for immersion the way a dedicated waterproof device would be, but it is designed to survive the incidental exposure — rain, drops, airport X-ray security — common in field use. Data integrity under these conditions is the core claim, not full submersion resistance.
32GB capacity at 4K UHD bitrates (approximately 80–100Mbps for common camera codecs) provides roughly 40–50 minutes of continuous 4K recording. For a controlled shoot with planned takes, this is workable with disciplined card management. For run-and-gun, documentary, or event shooting where recording is sustained and unpredictable, a 64GB or 128GB card eliminates the mid-session card swap.