OWC Atlas Ultra SD card.

Adrian Kingsley-Hughes/

I often come across people who spend thousands on camerasandlenses and drones, and then look for the cheapest storage media they can find.

This seems like a great idea, right up until the moment you offload your photos and video -- and you discover your valuable files are corrupted or lost.

Also: What do all those microSD and SD card numbers and letters mean?

One company that I trust with my captures is OWC. I use several of the company's products, fromcapturing on their storage cards , to ingesting photos and videos using theirdocks and readers , to storing the output on thecompany's external storage drives .

Recently, the company released a new line of storage cards, theAtlas Ultra . 

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OWC Atlas Ultra SD card

With capacities ranging from 64GB to 512GB and max read and write speeds of 300MB/s and 250MB/s respectively, these are cards designed by pros for pros.

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OWC Atlas Ultra features

• Ultra-speed: Rated for up to 250MB/s write and 300MB/s read real-world speeds, making the cards the ideal choice for high-burst image sequence, RAW photography, and high bitrate 4K, 6K, and even 12K video recording
• Dependable: Delivers 90MB/s minimum sustained write speed for reliable operation
• Proven: Extensive performance testing in the highest settings of high-end cameras
• Tough: Rugged design that's bend/shock/X-ray resistant, and IP67 dust-proof and waterproof
• Compatible: Fully compatible with a wide variety of DSLR and mirrorless cameras
• Flexible: Backwards compatible with previous generation of SD devices and readers
• Bus type: UHS-II
• Rating: V90, U3

The OWC Atlas Ultra is a UHS-II SD card, hence the extra contacts on the back.

Adrian Kingsley-Hughes/

High-speed burst photography and 4K/6K video recording puts an enormous strain on storage media, and it is this workload that the Atlas Ultra is designed to handle. I've tested my sample256GB Atlas Ultra SD card both in real-world tests and synthetic benchmarks, and it worked flawlessly all the time.

Also: The best cameras for photographers: Entry-level to pro

For real-world testing, I used my Sony A7RIV to shoot several hundred photos and a couple of hours of video at the camera's highest settings, and the card had no trouble keeping up.

The OWC Atlas Ultra can easily keep up with the demands put on it by the Sony A7RIV mirrorless camera.

Adrian Kingsley-Hughes/

For the benchmark tests, I used bothBlackmagic's Disk Speed Tool and AJA System Test , using the built-in SDXC card slot on a16-inch M2 MacBook Pro . Before testing, all the cards were formatted using the SD Association's free SD Card Formatter, available for both Mac and Windows.

Also: Boost your security and productivity with the top Mac apps

At the highest possible settings for each test, the card delivered excellent performance, coming very close to the rated speeds.

Benchmark results for the OWC Atlas Ultra from Blackmagic Disk Speed Test and AJA System Test.

Adrian Kingsley-Hughes/

Another feature I like my SD cards to have is durability. Ideally, they're going to be kept in nice little crushproof, dustproof, waterproof cases. In reality, they can find themselves in the bottom of my camera bag amongst all the detritus, and stored beneath a camera body or lens. 

The OWC Atlas Ultra is built rugged, designed to be bendproof, shockproof, and X-ray resistant, and IP67-rated for dust and water proofing.

The Atlas Ultra is bendproof, shockproof, and X-ray resistant, and IP67-rated for dust and water proofing.

Adrian Kingsley-Hughes/

With prices ranging from$64.00 for the 64GB version  to$499.99 for the 512GB cards , prices are close to$1 a gigabyte, making these cards a premium purchase.

However, you're getting one of the very best cards on the market that can handle the heaviest 6K workloads from cameras such as the Blackmagic URSA mini Pro 12K . 

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