Is this card fast enough for 4K video?

Yes. SanDisk rates it for 4K UHD and 5K video, and owners use it in action cams and drones. For very high bitrate or long bursts, the Extreme Pro line writes faster.

What does the A2 rating mean?

A2 is an app performance rating for microSD cards. It means the card is rated for faster random read and write, which helps apps load and run on Android devices.

Will it work in a Nintendo Switch?

It fits the microSD slot and the capacity suits game storage. Nintendo recommends UHS-I cards, which this is.

Does it come with an SD adapter?

No. The card is the only item listed in the box, so you need your own adapter or reader for full-size SD slots.

How does it compare with the SanDisk Ultra?

The Extreme is the faster, more durable line, rated for 4K and 5K video and A2 app performance. The Ultra is a basic card for photos and simpler use.

Is it compatible with drones and action cameras?

Yes. SanDisk lists action cams, drones, Android devices and handheld gaming devices as compatible.

Where is the SanDisk 256GB Extreme microSD UHS-I Card cheapest?

At Walmart, for $74.99, as of our latest check.

What do buyers say about the SanDisk 256GB Extreme microSD UHS-I Card?

Rated 3 out of 5 from 2 ratings.

SanDisk 256GB Extreme microSD UHS-I Card

Best price now

$74.99at WalmartChecked Nov 8

Prices are checked against each store and labelled with when.

Visit Walmart

SanDisk 256GB Extreme microSD UHS-I Card

Best price now

$74.99at WalmartChecked Nov 8

Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Last seen at $74.99 at Walmart on Nov 8.

Our take on the SanDisk 256GB Extreme microSD UHS-I Card

The SanDisk Extreme microSD UHS-I card is a 256GB card built for action cameras, drones, Android phones and handheld consoles. It carries an A2 rating for app performance and is rated for 4K UHD and 5K video capture. It sits above basic cards like the Ultra line and below the Extreme Pro, which adds faster write speeds for heavy burst shooting. Owners like it as a dependable everyday card for recording and expanding storage.

Best forAction camera and drone recordingExpanding Android phone or tablet storageHandheld gaming console storageEveryday 4K video capture

Pros

A2 rating for faster app loading on Android devices
Rated for 4K UHD and 5K video
256GB holds long recording sessions
Works across action cams, drones, phones and consoles
SanDisk app for managing and organizing files

Cons

UHS-I interface caps speeds versus UHS-II cards
Not the fastest write speed in SanDisk's lineup
Sustained write speed drops during long bursts
Adapters and readers are not included

SanDisk 256GB Extreme microSD UHS-I Card prices at every store

WalmartNew
In stockSold by SanDisk TechnologiesReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$74.99Free shippingChecked Nov 8
Visit Walmart

What reviewers say

Owners generally treat this card as a reliable choice for action cams, drones and phones, valuing the capacity and A2 rating. Some note that write speeds fall short of premium cards during heavy continuous recording.

What people mention

ReliabilityPraisedOwners report the card holds up well in action cams and drones.
App performancePraisedThe A2 rating is credited with smoother app use on Android devices.
CapacityPraised256GB is seen as enough for long recording sessions.
Write speedMixedSome find write speeds adequate, others say they trail premium cards.
Sustained speedCriticisedSpeed drops during long continuous recording, according to some owners.

About the SanDisk 256GB Extreme microSD UHS-I Card

The SanDisk Extreme microSD UHS-I card has 256 GB of storage. It is made for recording 5K point-of-view video and 4K UHD aerial video. It also expands storage on Android devices, laptops and handheld gaming consoles.

The card is rated A2 for performance. It loads apps quickly and helps apps run more smoothly. It is designed, built and tested to help protect every shot. The SanDisk app lets you manage and organize your files.

Capacity: 256 GB
Card type: microSD UHS-I
App rating: A2
Video: 5K point-of-view, 4K UHD aerial
Compatibility: Action cams, drones, Android devices, handheld gaming devices
In the box: SanDisk Extreme microSD UHS-I card

Specifications

data_storage: 256 GBSource
color: OtherSource

Questions and answers

Is this card fast enough for 4K video?: Yes. SanDisk rates it for 4K UHD and 5K video, and owners use it in action cams and drones. For very high bitrate or long bursts, the Extreme Pro line writes faster.
What does the A2 rating mean?: A2 is an app performance rating for microSD cards. It means the card is rated for faster random read and write, which helps apps load and run on Android devices.
Will it work in a Nintendo Switch?: It fits the microSD slot and the capacity suits game storage. Nintendo recommends UHS-I cards, which this is.
Does it come with an SD adapter?: No. The card is the only item listed in the box, so you need your own adapter or reader for full-size SD slots.
How does it compare with the SanDisk Ultra?: The Extreme is the faster, more durable line, rated for 4K and 5K video and A2 app performance. The Ultra is a basic card for photos and simpler use.
Is it compatible with drones and action cameras?: Yes. SanDisk lists action cams, drones, Android devices and handheld gaming devices as compatible.
Where is the SanDisk 256GB Extreme microSD UHS-I Card cheapest?: At Walmart, for $74.99, as of our latest check.
What do buyers say about the SanDisk 256GB Extreme microSD UHS-I Card?: Rated 3 out of 5 from 2 ratings.