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Kingston Class 10 UHS-I SDXC Card (256 GB) Review
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Kingston Class 10 UHS-I SDXC Card (256 GB) Review

Kingston Technology has been a long-time producer of flash memory cards, from the good old CompactFlash cards to the miniscule microSD cards; as well as fast card readers to complement them.

They currently offer four classes of full-sized SD cards :

  • UHS-I Class 3 professional-grade SD cards
  • Class 10 UHS-I professional-grade SD cards
  • Class 10 UHS-I enhanced-grade SD cards
  • Class 4 standard SD cards

Today, we are going to take a look at the latest member of the Kingston Class 10 UHS-I professional-grade SD card - the 256 GB Kingston Class 10 UHS-I SDXC Card. Here are its key features :

Versatile - Class 10 performance when used in a non-UHS-I capable device.

Compliant - with the SD Card Association specification.

Secure - built-in write-protect switch prevents accidental data loss.

Compatible - not compatible with SDHC or standard SD-enabled devices / readers.

Guaranteed - With a lifetime warranty and free technical support.

With a rated write speeds of up to 45 MB/s and 256 GB of storage capacity, Kingston claims you can record up to 1,280 minutes of full 1080p HD video at 24 fps without stuttering. Let's find out if that's true!

For more details, read our Comprehensive Review!

To discuss about this review, head over to the forum thread!

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Comprehensive Review


• SDA10/256GB


• SDXC (Secure Digital eXtended Capacity)

Ultra High Speed Bus

• Yes, Class 1

Formatted Capacity

• 256,422,969,344 bytes

Default Format

• exFAT

Maximum Read Speed

• 90 MB/s

Maximum Write Speed

• 45 MB/s

Maximum Width

• 24 mm (0.94 inches)

Maximum Height

• 32 mm (1.26 inches)

Maximum Thickness

• 2.1 mm (0.08 inches)

Operating Voltage

• 3.3 V

Operating Temperature

• -25° C to 85° C (13° F to 185° F)

Non-Operating Temperature

• -40° C to 85° C (-40° F to 185° F)


• Lifetime Warranty


Our Review System

Tech ARP is committed to developing new ways to improve your experience with us. As part of our continuous efforts to improve the value of our reviews to you, we are implementing a multi-tier review system.

This review system is designed to allow you to quickly receive information on the latest hardware or software. This new system also allows you to quickly get the gist of the review without reading through it. This can be very useful, especially in situations where you need to make a quick purchase decision.

In this new system, we start with a Product Overview whenever a company sends us a press release about their latest product. We shift through extraneous PR-talk to create a straightforward summary of the product's features as well as specifications. This allows you to quickly find out all the pertinent details about the product, without reading through official press releases.

When we receive the product for review, we will quickly take photos of it and create a Pictorial Review. The purpose of a pictorial review is to allow you, the reader, to quickly examine the product visually. It may help you make better purchase decisions, especially if you cannot wait for the full review.

After thorough testing, we will post a Comprehensive Review of the product. This adds on to the pictorial review with comprehensive test results and our final conclusion on the product.

But no matter whether you are reading a Pictorial Review or a Comprehensive Review, you can always read the summary of the review as well as examine the product's specifications right on the first page. In all our new reviews, we will maintain the first page as a Product Overview page. If the product is listed in PriceGrabber, you can also check out the lowest price online.

We hope this new review system will make your experience a lot more enjoyable and informative!


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