Is this card fast enough for 4K video?

Yes. It is rated U3 and V30, which covers 4K UHD recording on most cameras and drones.

Will it work in a UHS-II camera?

It will work, but at UHS-I speeds. The camera's faster UHS-II bus is not used.

How does it compare with the Extreme Pro?

The Extreme Pro is faster, especially on writes, and better for sustained bursts and high-bitrate video. This card is the cheaper middle option.

The card itself. No reader or case is included.

Is it good for burst photography?

Yes for most DSLR and mirrorless shooting. Very deep RAW bursts may clear the buffer more slowly than on an Extreme Pro.

Where is the SANDISK 128GB Extreme SD UHS-I Card cheapest?

At Walmart, for $44.99, as of our latest check.

What do buyers say about the SANDISK 128GB Extreme SD UHS-I Card?

Rated 5 out of 5 from 5 ratings.

SANDISK 128GB Extreme SD UHS-I Card

Best price now

$44.99at WalmartChecked Nov 8

Prices are checked against each store and labelled with when.

Visit Walmart

SANDISK 128GB Extreme SD UHS-I Card

Best price now

$44.99at WalmartChecked Nov 8

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $44.99 at Walmart on Nov 8.

Our take on the SANDISK 128GB Extreme SD UHS-I Card

The SanDisk Extreme 128GB is a UHS-I SD card rated for up to 230MB/s read and 120MB/s write, with U3 and V30 speed classes for 4K UHD video. It is aimed at photographers and videographers who need fast burst shooting and reliable 4K capture without moving to UHS-II. It sits above the Ultra line and below UHS-II cards like the SanDisk Extreme Pro, so it is a middle choice: quicker than budget cards, but capped by the UHS-I interface. Owners generally report dependable performance in cameras and drones.

Best forDSLR and mirrorless photographers shooting bursts4K video on cameras and dronesTravel and outdoor shooting where reliability mattersBuyers who want speed without UHS-II hardware

Pros

Up to 230MB/s read and 120MB/s write
U3 and V30 rated for 4K UHD video
128GB holds large photo and video libraries
Works with the wide range of UHS-I cameras
SanDisk's reputation for dependable cards

Cons

UHS-I interface caps speed on UHS-II cameras
Write speed is well below Extreme Pro cards
Not rated for the most demanding high-bitrate codecs
Counterfeits exist, so buy from a trusted seller

SANDISK 128GB Extreme SD UHS-I Card prices at every store

WalmartNew
In stockSold by Newegg Inc.Returns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$44.99Free shippingChecked Nov 8
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What reviewers say

Owners describe the card as fast and reliable for stills and 4K video in cameras and drones. Some note it does not reach its rated speeds in every device and that UHS-II cameras are held back by the interface.

What people mention

SpeedPraisedOwners find read and write speeds quick enough for bursts and 4K clips.
ReliabilityPraisedUsers report the card holding up through travel and repeated use.
Device speedMixedSome say real-world speeds fall short of the rated figures depending on the camera.
UHS-I limitCriticisedOwners with UHS-II cameras say the card cannot use the faster bus.
CounterfeitsCriticisedBuyers warn about fake cards sold in some channels.

About the SANDISK 128GB Extreme SD UHS-I Card

The SanDisk Extreme is a 128GB SD card that uses the UHS-I interface. It reads at up to 230MB/s and writes at up to 120MB/s.

It is rated U3 and V30 for 4K UHD video recording.

Brand: SanDisk
Capacity: 128GB
Card type: SD card, UHS-I
Read speed: Up to 230MB/s
Write speed: Up to 120MB/s
Speed class: U3, V30
Video: 4K UHD
Model: SDSDXV9-128G-GUCIN

Questions and answers

Is this card fast enough for 4K video?: Yes. It is rated U3 and V30, which covers 4K UHD recording on most cameras and drones.
Will it work in a UHS-II camera?: It will work, but at UHS-I speeds. The camera's faster UHS-II bus is not used.
How does it compare with the Extreme Pro?: The Extreme Pro is faster, especially on writes, and better for sustained bursts and high-bitrate video. This card is the cheaper middle option.
What is in the box?: The card itself. No reader or case is included.
Is it good for burst photography?: Yes for most DSLR and mirrorless shooting. Very deep RAW bursts may clear the buffer more slowly than on an Extreme Pro.
Where is the SANDISK 128GB Extreme SD UHS-I Card cheapest?: At Walmart, for $44.99, as of our latest check.
What do buyers say about the SANDISK 128GB Extreme SD UHS-I Card?: Rated 5 out of 5 from 5 ratings.