SanDisk

SanDisk SDSDXNF-256G-GNCIN Extreme 256GB SDXC UHS-I Card

Name: SanDisk SDSDXNF-256G-GNCIN Extreme 256GB SDXC UHS-I Card
Brand: SanDisk
SKU: SDSDXNF-256G-GNCIN

Capture High-Speed Performance The SanDisk Extreme SDXC UHS-I Card delivers exceptional speed and performance for capturing stunning photos and videos. With fast read and write speeds, you can capture every moment with confidence and transfer files quickly and efficiently. Specifications: ...

$69.99*

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*Price sourced from Amazon.com. Last updated:Sep 06, 2026.Price and availability are subject to change — details.

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Overview

Capture High-Speed Performance

The SanDisk Extreme SDXC UHS-I Card delivers exceptional speed and performance for capturing stunning photos and videos. With fast read and write speeds, you can capture every moment with confidence and transfer files quickly and efficiently.

Specifications:

Capacity: 256GB
Type: SDXC UHS-I
Read Speed: Up to 90MB/s

Key Features

Up to ten times faster than ordinary memory cards.Write speed up to 60 MB/s,Read speed up to 90 MB/s

Delivers the speed and capacity you need to capture 4K Ultra HD video

Up to 60MB/s write speeds for faster shot to shot performance and up to 90MB/s for faster transfer

Highest SD card format video recording performance with both Class 10 and UHS Speed Class 3 (U3) ratings for capturing Full HD and 4K Ultra HD (3840 x2160p) video

Built for and tested in harsh conditions; temperature proof, water proof, shock proof, and x-ray proof.

Lifetime limited warranty

Compatible with SDHC and SDXC supporting devices

Specifications

Capacity

256GB

Card Type

SDXC

Speed Class

Class 10, UHS Speed Class 3 (U3)

Max Write Speed

60 MB/s

Max Read Speed

90 MB/s

Video Recording Performance

Full HD, 4K Ultra HD (3840 x 2160p)

Durability

Temperature proof, Water proof, Shock proof, X-ray proof

Compatibility

SDHC and SDXC supporting devices

Warranty

Lifetime limited

Frequently Asked Questions

What is the maximum write speed of this SanDisk Extreme card?

This SanDisk Extreme SDXC card offers a write speed of up to 60 MB/s, which allows for faster shot-to-shot performance when capturing images.

Can this memory card handle 4K Ultra HD video recording?

Yes, it delivers the speed and capacity required to capture 4K Ultra HD video, boasting both Class 10 and UHS Speed Class 3 (U3) ratings.

What kind of environments can this SanDisk card withstand?

This card is built for and tested in harsh conditions, making it temperature proof, water proof, shock proof, and x-ray proof.

How fast are transfers from this card to a computer?

For faster transfers, the card provides read speeds of up to 90 MB/s, allowing you to move large files efficiently.

What devices are compatible with the SanDisk SDSDXNF-256G-GNCIN card?

This card is compatible with devices that support SDHC and SDXC card formats.

Does the card come with a warranty?

Yes, the SanDisk Extreme 256GB SDXC UHS-I Card is backed by a lifetime limited warranty.

Strengths & Trade-offs

👍 Pros

Achieves impressive write speeds up to 60 MB/s, facilitating quicker shot-to-shot performance for photographers.
Offers read speeds up to 90 MB/s, enabling faster transfer of large files to your computer.
Optimized for 4K Ultra HD video capture, providing the necessary speed and capacity for high-resolution footage.
Built to withstand harsh conditions, featuring temperature, water, shock, and x-ray proofing for robust durability.
Comes with a lifetime limited warranty, providing peace of mind and long-term support for your investment.

👎 Cons

The specified write speed of up to 60 MB/s may not be sufficient for continuous burst shooting of uncompressed RAW files on some advanced cameras.
Maximum read speed of 90 MB/s, while fast, is not the absolute fastest available, potentially bottlenecking very large data transfers.
Only compatible with SDHC and SDXC supporting devices, limiting its use in older cameras or card readers that only support standard SD cards.
Its performance for capturing Full HD video is excellent, but its key advantage of 4K Ultra HD might be overkill for users not requiring such high resolution.
The card's advanced features, like UHS Speed Class 3, might not be fully utilized by devices that do not support this standard.