ProGrade Digital SDXC UHS-II V90 300R Memory Card (64GB)

Product Information

Well, you are visiting a stall for a memory card or an SD card and suddenly find that there are several classes of memory cards available. This can indeed be confusing, and choosing the right SD card may appear to be a difficult task. We thought of explaining what the V60 and V90 classes of SD cards stand for from that perspective. The Memory card Classes – An Overview

Given that the price for these two memory card types has a huge difference, you may be wondering… is this also the case when it comes to their performance? But it’s a good idea to look at what the maker says about the stuff to make sure it works with your thing and has any extra things you might want. 4. CostHowever, even the higher capacity offerings – such as this CompactFlash 800x series – are hardly expensive for what’s on offer. Capacities run from a standard 32GB up to 256GB. Specification is also impressive for a budget card, with read speeds of up to 120MB/s and write speeds of 60 MB/s, although actual performance, of course, is affected by camera hardware and software. Durable and reliable, there’s even a built-in error-correcting code to detect and correct any transfer errors. CFexpress Type B Buying a memory card to enhance your storage requirements has not remained as easy a task as it used to be in the past. If you want to understand the concept of different speed classes and the science behind them, this is the right option for you. Though we are concerned with the video speed classes, we will also attempt to understand other classes. The Card Classification – An Overview COUNTERFEITS ARE CRUMBLED: CUSTOM LASER-ETCHED SERIAL NUMBERS keep cheap counterfeiters at bay because our SD Cards are so difficult to mimic. Forged in our premium ProGrade Lab, we meticulously inspect each SDXC Memory Card before it ships out and laser etch a custom code on each one. When the Z 7II was set to shoot uncompressed 14-bit raw files at 10fps, I was able to capture 39 images in a single sequence lasting just under 4 seconds. That’s just 9 images short of what Nikon claims is possible with a good CFexpress card. Switching to capture Fine* quality Jpegs extended the sequence to 96 images, taking around 9 seconds. Meanwhile, shooting Fine quality Jpegs sees 127 images captured in one blast - above the 113 claimed for with a CFexpress card. The Video Speed Class offers the fastest speeds available and is ideal for ultra-high-resolution videos, high-quality videos and multi-file recording in drones and 360-degree cameras. It supports HD formats up to 8K video in drones, 360-degree cameras, action cams and VR cameras.

SDHC cards are designed for higher capacity needs, ranging from over 2GB to 32 GB. They use the FAT32 filesystem and support individual files up to a maximum of 4GB. The Speed Class rating was the original system and is denoted by a “C” followed by a number (10, 6, 4, or 2). Secondly, it indicates the minimum sustained write speed in MB/s. For example, a C10 card has a minimum sustained write speed of 10MB/s.

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. Both U1 and U3 memory cards can utilise the UHS-I bus interface, but are not compatible with the UHS-II bus interface.