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SanDisk Extreme PRO 64GB SDXC Memory Card up to 170MB/s, UHS-1, Class 10, U3, V30, Black

£34.9£69.80Clearance
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About this deal

It is not just cameras that use microSD cards, of course. And one of the most popular devices to use this memory type at the moment is undoubtedly the Nintendo Switch handheld console, and its baby brother the Nintendo Switch Lite. The slot in memory is not only great for expanding the number of games you carry, but also for taking screenshots and videos of your victories and adventures. While CFast cards look similar in size and shape to CompactFlash cards, they're not compatible (so don't try to jam one in your old DSLR!). This new-generation high-speed memory card format will be found in professional stills and video cameras. Just from this table alone, it’s easy to glean the difference between the three SD card types. Based on read and write speeds alone, the Extreme Pro is the most appropriate for highly demanding use. Photography and filmmaking are two of the most obvious examples of these, especially if you tend to capture 4K videos or use the burst photography feature of your camera. Nikon was the first camera company to introduce XQD cards in digital cameras and a lot of people thought it would be short-lived, and since XQD has now evolved into CFexpress Type B, in some sense they were right. CFexpress cards are considerably faster than XQD cards (though that's not to say XQD is slow - far from it), and there are more manufacturers producing CFexpress cards than XQD, leading to more competitive pricing.

As an evolution of the XQD format, CFexpress is one of the best memory card formats around. However, it's currently only available with a limited number of high end cameras (mostly from Canon, Nikon and Panasonic). However, it's worth noting that the release of the Sony A7S III brought a somewhat confusing split into two different variants of CFexpress cards. Up until this point, all CFexpress-compatible cameras used CFexpress Type B cards (yes, 'B' does come before 'A' in this case!). Meanwhile, CFexpress Type A cards are smaller and slower. Crucially, Type B and Type A cards aren't interchangeable, so a camera such as the Nikon Z7 won't be able to accept a CFexpress Type A card. While the higher capacity cards increase in price exponentially, the 633x appears in sizes as small as 16GB, making it suitable for a wide range of photographers and videographers alike who require all kinds of capacities for casual or professional use. We found its write speed to be a little slow compared to other UHS-I cards in this class range, but it’s good value for money and the V30/U3 class listing means it’s still suitable for up to 4K UHD video recording. When you think of a memory card, you'll likely find that the popular SD card format comes to mind. However, if you're using a newer camera, or one of the best professional cameras, then you'll likely need to look for a CFexpress or XQD card. However, Compact Flash, microSD and CFast cards are still all regularly used as well.With shot speeds up to 140MB/s 6 the card is perfect for capturing the action as it happens, without missing a beat.

Up to 200MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Write speed up to 140MB/s. Based on internal testing; performance may be lower depending upon host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. X = 150KB/sec. [64-128GB] Up to 200MB/s read speed. Write speed up to 90MB/s. Based on internal testing; performance may be lower depending upon host device. 1MB=1,000,000 bytes. X = 150KB/sec. [32GB] Up to 100MB/s read speed. Write speed up to 90MB/s. Based on internal testing; performance may be lower depending upon host device. 1MB=1,000,000 bytes. X = 150KB/sec. Actual transfer speeds under our testing churned out a write speed of 33MB/s and read speed of 82MB/s; not too bad, but the write speed is close to the minimum V30 classification on the label, so that's worth bearing that in mind if write speeds are important to your work. Just keep in mind that the pricing for SD cards isn’t linear with capacity. For instance, the 512 GB version of the Extreme Pro is about 4.3 times more expensive than the 128 GB version while the 1 TB version is almost 9 times more expensive. ProGrade Digital also has a 160GB Type A card you can buy, but it's not as readily available as this Sony equivalent, and is only marginally cheaper. Delkin has Type A cards coming soon though, so hopefully prices will start to fall further. XQD CompactFlash used to be the preferred format for higher-end DSLRs. However, with the improved performance of SDHC and SDXC cards (and the introduction of newer memory card formats as well), this memory card format is growing more rare.If you’re shooting raw files you want a card that can handle sequential bursts of the highest quality imagery, as well as a capacity that allows for sufficient storage to avoid having to swap cards every five minutes. The capacity is also questionable. The useable area amounts to 119GB which means around 9GB is lost. OK system files etc. usually take up a little of the space, but surely not 9GB? If you're often working with high quality 4K video, ProRes video, or RAW photos from cameras such as the Canon EOS-1DX Mark II, then you'll know the value of a card that can keep up with what you're shooting.

But what's the use of a 1TB memory card if everything reads and writes slowly? Speed should be your next criterion for choosing a memory card. For photographers, write speeds are very important as they determine how fast you can shoot, especially in burst mode. Sometimes speed is what you need. The SanDisk Extreme PRO SD UHS-I card delivers the performance to capture stunning, uninterrupted 4K UHD video 1. The Transcend did superbly in its speed tests, excelling the claimed write speed (180MB/s) with a whopping 224MB/s, but falling slightly short on the read speed with 224MB/s. Overall, that makes this card an impressive buy at a reasonable cost. This card is ideal for high resolution, rapid-fire stills photography and 8K video, with 4K and HD video being recorded comfortably, too. There are three main types of SD card: SD, SDHC (high capacity) or SDXC (extended capacity). SD cards typically offer 128MB to 2GB in storage capacity, too small for today’s modern cameras with higher resolutions. SDHC bumps this up from 4GB to 32GB, useful for most photographers and videographers. SDXC cards, meanwhile, range from 64GB to 2TB and are aimed at professional-level users who require more memory.

The cards are different colors depending on the capacity - so red with a Nintendo Mushroom icon for 128GB, yellow with a Super Star for the 256GB, and teal green for the 512GB card. You don't need these customized cards, as any microSD card will work in your Switch – but you will earn kudos points for brand loyalty.

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