
SanDisk
SanDisk SDSQXBZ-256G-ANCMA Extreme Plus 256GB microSDXC Card
★★★★★
4KUHD
The SanDisk Extreme Plus 256GB microSDXC delivers up to 170MB/s reads and A2 app performance for 4K video and demanding mobile use.
$69.49*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.
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Overview
Key Features
Allows 4K UHD video, full-HD video and high-resolution photos
A2-rated to enable speedy app performance
Stores up to 256GB
Specifications
Capacity
256GB
Form Factor
microSDXC
Speed Class
UHS-I, U3, V30, A2
Max Read Speed
Up to 170MB/s
Max Write Speed
Up to 90MB/s
Adapter Included
Yes (full-size SD)
Model
SDSQXBZ-256G-ANCMA
Pros & Cons
👍 Pros
- Read speeds up to 170MB/s make transferring large video files and photo libraries noticeably faster than standard microSD cards
- A2 app performance rating supports running and loading apps directly from the card on compatible Android devices
- 256GB capacity holds extensive 4K video footage, high-resolution photos, or a large app and media library
- V30 and U3 speed class ratings ensure reliable sustained writes for uninterrupted 4K recording
👎 Cons
- Write speed of up to 90MB/s is considerably slower than the read speed, which can be a bottleneck during burst photo shooting
- Requires a UHS-I compatible reader or device to achieve maximum transfer speeds; older readers will be much slower
- No built-in encryption or hardware write protection switch on the microSD form factor
Frequently Asked Questions
What devices is the SanDisk Extreme Plus 256GB compatible with?
It is compatible with Android smartphones, tablets, action cameras like GoPro, drones, and any device that accepts microSDXC cards. An SD adapter is included for use in full-size SD card slots.
What do the U3, V30, and A2 ratings mean on this card?
U3 and V30 both indicate a minimum sustained write speed of 30MB/s, which is the threshold for recording 4K UHD video. A2 indicates the card meets Application Performance Class 2 standards, supporting faster random read/write operations for running apps directly from the card.
How fast can this card transfer files?
It offers read speeds up to 170MB/s and write speeds up to 90MB/s, allowing you to move large photo and video files to a computer quickly when paired with a compatible UHS-I reader.
Can I record 4K video onto this card?
Yes, the V30 speed class rating guarantees the minimum 30MB/s sustained write speed required for 4K UHD video recording in compatible cameras and drones.
Does an SD adapter come with this card?
Yes, a full-size SD adapter is included so you can use the microSDXC card in cameras, laptops, and card readers with standard SD slots.